Short answer: “colorfast” is not one test result. For a common ISO route, ISO 105-C06 addresses resistance to specified domestic or commercial laundering, ISO 105-X12 addresses dry and wet rubbing transfer, and ISO 105-E04 addresses the action of human perspiration. If daylight fading matters, ISO 105-B02 is a separate lightfastness route. Each method uses its own exposure, specimen preparation, assessment and report fields.
Keep three result types separate:
- color change in the tested fabric or garment;
- staining of an adjacent test fabric during washing, perspiration or another exposure;
- crocking/rubbing transfer onto a controlled dry or wet rubbing cloth.
A Pantone target, approved lab dip or matching bulk shade does not prove any of these performance results. There is also no universal activewear pass grade.
For Linked Sourcing, Ready Styles start from 50 pieces per style, with at least 15 pieces in every selected color-size combination, and use the offered standard product and colors. A new custom color, dye route, print, finish or buyer-owned colorfastness specification belongs in Full Custom Manufacturing from 200 pieces per color and style. Fabric, dye, print and testing minimums can be higher.
Fiber family affects dye selection, but a nylon/polyamide or polyester percentage does not prove colorfastness. Use the activewear nylon vs polyester vs spandex guide to freeze the material identity, then test the exact dye/print, color, finish and lot under the relevant exposure.
For golf polos with a separate rib, contrast collar, placket, embroidery or silicone logo, use the golf polo manufacturing guide to map every component and contact zone. An approved body shade or laundering grade does not automatically cover collar-to-body matching, perspiration transfer, decoration, light exposure or after-care collar shape.
| Buyer concern | Correct evidence question | Result to request | What it does not prove alone |
|---|---|---|---|
| “Will the shade fade in washing?” | What happens under the named laundering procedure? | Color change plus staining on specified adjacent materials | Dry/wet rubbing, perspiration, light or dimensional stability |
| “Will dark leggings stain a pale top?” | Does color transfer during wet or dry contact? | Rubbing/crocking rating in each required condition | Laundering or perspiration performance |
| “Will sweat change the shade?” | What happens under the selected perspiration method? | Color change and adjacent-fabric staining after the exposure | Wicking, odour control or actual sweat visibility |
| “Will a window display or outdoor run fade it?” | What light exposure and endpoint represent the decision? | Named lightfastness method and assessment | Washing, rubbing, UV protection or product lifespan |
| “Is the bulk color approved?” | Does the bulk lot match the approved physical target? | Shade-lot comparison under controlled conditions | Any colorfastness performance |
| “Will the contrast panels stay clean?” | How do each color and component interact under care/use? | Component-specific staining and transfer evidence | That every production lot is identical |
Translate the complaint into the correct test
“The color came off” can mean several different failures. A black legging can become lighter after laundering without staining another material. A saturated print can keep its own appearance but transfer pigment to a wet rubbing cloth. A contrast bra can show staining on its pale lining after perspiration exposure while the dark shell itself changes very little. Sunlight can fade one dye even when wash performance is acceptable.
Before requesting a report, write the failure in operational language:
For style ___, color/print zone ___, material/lot ___ and specimen state ___, test colorfastness under method ___ edition ___, condition/procedure ___. Assess color change of the specimen and staining or transfer on ___ separately using assessment route ___. Report each individual result and apply the pre-agreed limits ___ before material or bulk release.
This prevents one attractive “Grade 4” line from being detached from the method, exposure, rating type and product it actually covers.
What the official ISO and AATCC methods cover
| Official source | Public scope | Useful activewear question | Critical boundary |
|---|---|---|---|
| ISO 105-A01:2010 | General information, uses and limitations for textile colorfastness methods | Are the chosen test and report being interpreted within the ISO 105 framework? | It does not select the product-specific exposure or pass grade |
| ISO 105-C06:2010 | Resistance of textile color to specified domestic or commercial laundering using reference detergent | Does the specified material change color or stain adjacent fabric under the chosen procedure? | Procedure severity, detergent/bleach system and result must be named |
| ISO 105-X12:2016 | Resistance of textile color to rubbing off and staining other materials; dry and wet tests may be made | Does surface color transfer under controlled dry or wet rubbing? | Published but under systematic review as of August 2026; confirm the current edition |
| ISO 105-E04:2013 | Resistance of textile color to the action of human perspiration | Does the specimen change or stain adjacent fabric under this method? | It does not measure moisture wicking, sweat visibility, odour or real-use duration |
| ISO 105-B02:2014 | Effect of artificial light representative of natural daylight on textile color | Does the shade meet the agreed artificial-light requirement? | Results from its two blue-wool reference sets may not be identical; it does not prove UPF |
| ISO 105-A02:1993 | Grey scale for assessing change in color | How is specimen color change visually assessed where applicable? | A rating has meaning only with the exposure method and conditions |
| ISO 105-A03:2019 | Grey scale for assessing staining of adjacent fabrics | How is adjacent-fabric staining visually assessed where applicable? | It is not the same scale decision as specimen color change |
| AATCC TM61-2013e(2020)e2 | Accelerated laundering tests for textiles expected to withstand frequent laundering | Does the selected AATCC condition approximate the defined laundering exposure? | One 45-minute method test is a controlled approximation, not a promise of exactly five consumer washes |
| AATCC TM8-2016e(2022)e | Surface color transfer by controlled rubbing with dry and wet white crock cloths | What dry and wet crocking ratings does the selected surface achieve? | Not recommended for some prints where the target area is too small for this method |
| AATCC TM15-2021e | Fastness of colored textiles to acid perspiration | What color change and transfer occur under this acid-perspiration route? | Do not present it as an alkaline route or a complete sweat-performance claim |
| AATCC TM16.3-2020 | General xenon-arc lightfastness procedures for textiles, colorants, finishes and treatments | Which test option and exposure endpoint support the intended lightfastness decision? | AATCC states the options do not automatically represent an accelerated test for a specific application |
| AATCC EP1-2025 | Visual gray-scale evaluation of overall color change from a colorfastness test | How was overall color change rated where this procedure applies? | It does not replace the underlying exposure method or buyer limit |
An ISO report and an AATCC report should not be treated as interchangeable merely because both use the word “colorfastness” or show similar-looking grades. Apparatus, detergent, solutions, mechanical action, temperature, time, specimen assembly, assessment and rounding can differ. Use the route specified by the buyer, retailer or destination-market program.
Laundering colorfastness: choose the procedure, not just C06 or TM61
ISO 105-C06:2010 was reconfirmed in 2026. Its public scope says the methods cover textiles of all kinds and forms under specified domestic or commercial laundering procedures with a reference detergent. It distinguishes single (S) and multiple (M) tests. One S test closely approximates one laundering for the color loss and staining mechanisms described, while an M test can in some cases approximate up to five launderings at temperatures not exceeding 70 °C. M tests have more mechanical action.
That language is not permission to sell “guaranteed color for five washes.” The request still needs the exact procedure, detergent and bleach system, temperature, specimen assembly, adjacent material, assessment and pass limit. ISO also notes that its procedures do not reflect optical brighteners in commercial washing products and are designed for the detergent and bleach systems specified in the method.
AATCC TM61-2013e(2020)e2 is another accelerated route. Its public scope states that one 45-minute test roughly approximates the fabric color loss and surface changes from five typical hand or home launderings under its controlled conditions. “Roughly approximates” is not “equals five customer washes,” and the selected condition still matters.
Keep laundering colorfastness separate from the activewear shrinkage and dimensional-stability wash guide. The same care exposure can produce both color and dimension observations, but the methods, calculations and acceptance rules are different.
Dry and wet rubbing answer different contact risks
Activewear contacts skin, underwear, towels, gym benches, bags, upholstery and other garments. Moisture can change transfer behaviour, so dry and wet ratings should not be merged into one value.
ISO 105-X12:2016 allows a dry rubbing test and a wet rubbing test. It is published but entered systematic review in July 2026; a new order should confirm whether the buyer and laboratory still require this edition. AATCC TM8-2016e(2022)e also uses dry and wet white crock cloth under controlled rubbing conditions.
The report should identify:
- dry or wet condition;
- face/back or exact print zone tested;
- direction and specimen orientation where relevant;
- fabric, color, print, finish and lot;
- whether testing occurred before care, after care or both;
- transfer assessment route and individual rating;
- buyer acceptance limit.
A dark fabric may perform differently at the brushed face, printed logo, bonded area or reverse side. A small placement print may not be suitable for the same specimen geometry as the base fabric; AATCC TM8’s public scope specifically cautions against some prints where the area to isolate is too small. Ask the laboratory for a valid route instead of placing the crockmeter over unrelated colors and treating the mixed result as a print rating.
Perspiration colorfastness is not moisture management
ISO 105-E04:2013 determines resistance of textile color to human-perspiration conditions. AATCC TM15-2021e applies an acid-perspiration route and assesses the specimen’s color change and color transfer to other fiber materials.
These results do not prove that an activewear fabric wicks sweat, dries quickly, hides wet patches, resists odour or keeps a wearer comfortable. Use the activewear moisture-wicking and quick-dry evidence guide for those separate mechanisms.
For odor-control language, use the activewear anti-odor testing guide to distinguish named odor-component reduction, bacterial-odor reduction, antibacterial activity, after-care durability and controlled wear evidence. Perspiration colorfastness is not an anti-odor test.
Sweat-risk zones can be product specific: sports-bra underbands, center fronts, backs, underarms, waistbands, crotches, headbands and close-fitting linings. The selected specimen and color coverage should reflect the commercial risk without claiming that a fabric test reproduces every person’s sweat chemistry, duration or movement. Colorfastness remains separate from the sports bra support protocol, which controls fit, breast motion, local pressure, perception and after-care support.
Color change, staining and transfer must be reported separately
Under common gray-scale assessment systems, a rating of 5 represents no visible difference at that comparison and lower numbers represent greater change or staining. But the rating is incomplete without identifying what was rated.
| Report line | What it means | What must accompany it | Unsafe interpretation |
|---|---|---|---|
| Color change: 4 | The tested specimen changed to the assessed degree after one named exposure | Exposure method/condition, original and tested specimen, assessment route | “All colors are Grade 4” |
| Staining, acetate: 4 | The named adjacent fiber was stained to the assessed degree | Adjacent-fabric construction/fibers and each individual rating | “No transfer to any material” |
| Staining, nylon: 3–4 | The nylon component received a different rating | Exact adjacent fiber and buyer limit for it | Averaging it with other fibers without permission |
| Dry rubbing: 4–5 | Transfer to the dry rubbing cloth was assessed | Rubbing method, tested face/zone and assessment route | “Wet rubbing is also 4–5” |
| Wet rubbing: 3 | Transfer to the wet rubbing cloth was assessed | Wet condition and cloth preparation controlled by the method | “It will stain every customer” or “it is safe for all use” |
| Lightfastness result | Color response under a named light exposure and reference system | Method option, exposure endpoint, reference set and assessment | “The garment will never fade outdoors” |
ISO 105-A02:1993 covers the grey scale for change in color. ISO 105-A03:2019 covers the grey scale for staining adjacent fabrics. AATCC EP1-2025 is an AATCC visual route for overall color change. Do not swap the color-change and staining scales or copy a number without its evaluation procedure.
There is no universal activewear colorfastness pass grade
A retailer manual may require one minimum for dark wash color change, another for wet rubbing and separate staining minimums by adjacent fiber. Another buyer can use different limits because the product, market, care route, shade depth, fiber blend and claim differ.
Linked Sourcing does not publish one universal “Grade 4,” “4–5” or other pass requirement for every style. Set the acceptance rule before the laboratory result is known. Record whether:
- every individual specimen and adjacent fiber must pass;
- a half-grade is permitted and how it is recorded;
- an instrument or visual assessment controls;
- dry and wet rubbing have separate limits;
- different colors or print zones have separate coverage;
- testing occurs as received, after laundering or at both stages;
- a failed result can be retested and under what rule;
- corrective dye/finish changes require a new lab dip, fabric or garment approval.
An unexplained “pass” or “4” on a supplier spreadsheet is not enough for bulk release.
Shade match, opacity and colorfastness are three approvals
A lab dip answers whether one dyed submission matches a target under defined viewing and measurement conditions. Colorfastness answers how that color responds to a specified exposure. Opacity answers whether the material provides the required coverage at the relevant stretch and lighting.
Use the activewear Pantone, lab-dip and bulk-shade checklist to control shade identity and lot consistency. Do not use a good Delta E or visual match as colorfastness evidence. A perfect shade can transfer badly; a highly colorfast shade can still miss the target.
Likewise, a dark legging that hides sweat or remains opaque is not automatically resistant to wet rubbing. Each claim needs its own evidence.
Build a risk-based color and component coverage plan
Testing every color under every method is not automatically necessary, but approving one shade for an entire collection without a technical basis is weak. Risk can change with:
- fiber type and blend;
- dye class and recipe;
- light, medium or deep shade depth;
- fluorescent or unusually bright colorants;
- solid dye, pigment print, sublimation or placement print;
- brushing, washing, coating, softener or other finish;
- face/back construction and plated yarn;
- contrast shell, lining, binding, elastic, thread and logo;
- production dye lot or print batch;
- post-treatment such as garment wash or heat application.
The activewear printing guide explains how sublimation, screen print, heat transfer and DTF differ before these exposure tests are selected. A process name does not predict a rating: test the production-intent substrate, print system, color and risk zone under the method that matches the claim.
| Product | Highest-risk color route | Coverage question | Additional check |
|---|---|---|---|
| Dark legging or bike short | Wet rubbing onto skin, pale garments or seats | Which face, shade and dye lot are covered? | Opacity, perspiration, wash change and after-care rubbing where required |
| Sports bra with pale lining | Perspiration staining and contrast transfer | Are shell, lining, binding and underband represented? | Post-care fit, elastic recovery and component appearance |
| Printed training top | Print-zone rubbing and laundering change | Is the print area valid for the method and sampled separately? | Print adhesion, cracking and garment wash appearance |
| Matching set | Lot-to-lot shade plus separate product contact | Do top and bottom use the same controlled lot/recipe? | Physical shade approval and component staining |
| Brushed fleece | Surface transfer plus fading after care | Was the brushed face tested before and after relevant treatment? | Pilling, matting and dimensional stability |
| Outdoor running layer | Light plus perspiration exposure | Is each method selected and reported independently? | Weather protection and UV claims need separate evidence |
| Contrast black/white garment | Staining during wash or perspiration | Which adjacent component and construction are represented? | Finished-garment trial, seam/trim appearance and migration risk |
| Approval stage | Useful color evidence | Do not treat it as proof of |
|---|---|---|
| Lab dip or print strike-off | Physical shade direction on the named material/process | Bulk-lot colorfastness or finished-garment component interaction |
| Finished development fabric | Method-specific result for the tested color, finish and lot | Every custom color, later bulk lot or full garment |
| Pre-production garment | Real shell/lining/trim arrangement plus applicable test evidence | Uncontrolled bulk dye/print lots |
| Bulk material/garment | Risk-based confirmation tied to production identity | Future orders using a different recipe, supplier, lot or finish |
Use the activewear sample approval checklist to connect the report to the correct sample stage, style, color, material lot and tech-pack revision. A report for an early swatch should not silently approve a different bulk recipe.
The 20-field activewear colorfastness test request
For a buyer-defined program, record:
- buyer/project, style number and controlled revision;
- product type, intended activity, target market and exact color claim;
- Ready Style code or Full Custom material/construction reference;
- fabric composition, construction, GSM, finish and supplier/lot;
- color name/code, dye route, print type and depth/risk group;
- face/back, print zone, lining, binding, elastic, thread or other component tested;
- fabric, cut panel, development garment, PP sample or bulk specimen stage;
- as-received, conditioned, prewashed or other pretreatment state;
- test method and exact edition;
- procedure/condition, temperature, time and mechanical action required by the method;
- detergent, bleach system, solution or exposure endpoint where applicable;
- dry, wet, acid-perspiration, light or other conditions kept separate;
- specimen count, dimensions, direction and sampling location/lot;
- adjacent-fabric type, every relevant fiber and rubbing-cloth route;
- color-change, staining, crocking or light result fields requested separately;
- visual scale, instrument or other assessment procedure and viewing conditions;
- every individual rating, half-grade convention and any mean/variability requested;
- pre-agreed acceptance limit for each method, condition, color and adjacent fiber;
- photos, report number, retained specimen and approved physical reference;
- fail, retest, corrective-action, reapproval and bulk-release authority.
Put these decisions in the activewear tech pack checklist and purchase-order quality section. “Good colorfastness” or “does not fade” without a method, result and coverage is not a reproducible product specification.
Separate surface wear from color transfer
Friction can make a fabric look lighter by removing raised fibers, polishing the surface, breaking a print or transferring color. Those are not automatically the same failure.
Use the activewear pilling and abrasion guide when the question is surface fuzz, pills, mass loss or breakdown. Use a colorfastness-to-rubbing route when the question is color transferred onto a controlled rubbing cloth. A pale friction mark on the garment should be investigated before it is labelled a dye-transfer failure.
For swimwear, add the chlorine, sea-water and swimwear colorfastness guide. Pool and sea-water methods answer separate exposure questions and do not replace laundering, rubbing, perspiration, sunscreen or physical durability tests.
Turn TikTok and Instagram complaints into controlled color questions
TikTok’s official Creative Center Trends lets teams inspect trends by industry, time period and region and review related content and audience signals. Instagram’s official Insights reports platform metrics such as views, reach and interactions for eligible professional accounts.
Use those tools to find repeated language—“black dye rubbed off,” “white bra turned pink,” “faded after one wash,” “sweat changed the color” or “no color transfer”—then convert it into a method-specific question. Confirm the date, region, product, material and care conditions before changing a sourcing specification.
| Social content signal | Product question | Evidence before making the claim |
|---|---|---|
| Creator wipes a wet cloth over a legging | Was cloth moisture, force, cycles, zone and assessment controlled? | Named dry/wet rubbing method and rating |
| Before/after wash video shows fading | Were the same product, lighting, procedure, detergent and cycles used? | Named laundering color-change and staining results |
| Comments say a dark set stained skin | Is the likely route wet rubbing, perspiration or unfixed surface color? | Separate rubbing and perspiration investigation on the exact shade/lot |
| Pale lining becomes tinted | Which shell/lining contact and exposure caused staining? | Adjacent-fabric/component staining evidence plus garment trial |
| Emerging brand promises “fade resistant” | Which exposure, color range and time/state are covered? | Claim-specific method, result, product/color scope and careful wording |
Platform reach does not prove colour fastness to laundering, rubbing, perspiration or light; it does not prove conversion, return rate, size demand, repeat orders or garment lifespan. Linked Sourcing does not claim that any platform, creator or brand mentioned in public market analysis is a customer, supplier, partner or endorsement.
Use the maintained TikTok and Instagram activewear trend review to validate market context. The emerging activewear brand strategy review explains how to turn public positioning into original, testable product proof without copying another brand or implying a relationship.
Grip socks combine dyed yarns, high-contrast stripes or embroidery and colored silicone close to skin and studio surfaces. Use the grip sock manufacturing guide to keep yarn color change, adjacent staining, dry/wet rubbing, perspiration, grip-pigment migration, adhesion and traction retention as separate approvals across risk colors and care states.
Ready Styles: ask what the exact selected style evidence covers
Ready Styles use the existing standard product, fabric, colors and finish from the current private Excel catalogue. They start from 50 pieces per style, with at least 15 pieces in every selected color-size combination.
Ready Style minimum = max(50, selected color-size combinations × 15). One color across five sizes therefore starts mathematically from 75 pieces, not 50. Exact stock, permitted branding, construction information, available reports and quotation must be reconfirmed.
There is no public browsable Ready Styles catalogue and no universal colorfastness certificate for every item. Ask Jerry for the private Excel catalogue and current stock quotation, identify the exact style code, colors, target market and intended claim, and ask what evidence is available for that style. Confirm whether it covers the same material, color, print, lot, condition and test edition. Buyer-required verification can be discussed before order approval.
Request the private Ready Styles Excel catalogue and current quotation.
Full Custom: approve the dye/print route before bulk cutting
Choose Full Custom when the buyer needs a new custom color, fiber or fabric, dye process, engineered print, contrast construction, finish, retailer protocol or owned colorfastness limit.
Full Custom starting quantity = ordered color-style pairs × 200. One style in two custom colors therefore starts mathematically from 400 pieces. Fabric mill, dyeing, printing, finishing and laboratory minimums can be higher than the garment MOQ.
Approve the physical color target first, then test the production-intent material and risk-representative colors/components under the agreed methods. Attach the report to the correct lab dip/bulk lot, sample revision and retained reference before bulk release.
Start a Full Custom Manufacturing enquiry.
Copy-and-send colorfastness brief
For garment-dyed, pigment-washed or matching-set hoodies, test and approve body, rib, thread, zipper tape, print, embroidery and adjacent garments as distinct color risks. The heavyweight hoodie manufacturing guide connects wash-color change and dry/wet rubbing to sealed shade ranges, component mismatch, process order and after-care appearance.
For garment-dyed, pigment-washed or matching-set joggers, the heavyweight jogger manufacturing guide adds body/rib/elastic/drawcord/pocket/thread/decoration color risks, seat/knee friction zones, packing contact and side-by-side top/bottom shade approval without turning one wash-color grade into universal set matching.
For a separately sold or bundled sweat top and bottom, use the matching sweat set manufacturing guide to distinguish initial shade match from washing change, rubbing transfer, packing contact, lot allocation and after-care set release.
Hi Jerry, I want to source/develop a ____. Route: [Ready Style / Full Custom]. Style code or reference: ____. Target market and quantity: ____ pieces per color and style. Colors/prints: ____. The main color risks are [wash fading / staining / dry rubbing / wet rubbing / perspiration / light / contrast transfer]. Please confirm the exact test methods and editions, specimen/color/lot coverage, conditions, adjacent materials, assessment route and pre-agreed limits. Keep shade match, color change, staining, rubbing transfer, opacity and physical durability as separate approvals. I have attached a [buyer protocol / tech pack / report / benchmark garment]. Please identify what existing evidence covers and what requires new verification before bulk approval.
Sources and review notes
- ISO 105-A01:2010 — general principles of textile colorfastness testing;
- ISO 105-C06:2010 — colorfastness to specified domestic and commercial laundering; reconfirmed in 2026;
- ISO 105-X12:2016 — dry and wet rubbing; under systematic review on this guide’s review date;
- ISO 105-E04:2013 — colorfastness to human perspiration;
- ISO 105-B02:2014 — artificial-light colorfastness; confirmed in 2025;
- ISO 105-A02:1993 and ISO 105-A03:2019 — grey scales for color change and staining;
- AATCC TM61-2013e(2020)e2 — accelerated laundering colorfastness;
- AATCC TM8-2016e(2022)e — crockmeter colorfastness to rubbing;
- AATCC TM15-2021e — colorfastness to acid perspiration;
- AATCC TM16.3-2020 — xenon-arc lightfastness;
- AATCC EP1-2025 — gray-scale evaluation of color change;
- TikTok Creative Center Trends and Instagram Insights — platform-side discovery and content metrics, not product-test proof.
This guide was reviewed on August 11, 2026. Standards, buyer manuals, destination-market requirements and platform tools can change. Confirm the current licensed method, laboratory capability, product/color coverage, retailer limits and claim wording before testing, ordering or publishing a color-performance statement.
For garment-dyed, pigment-dyed or vintage-wash tees, use the heavyweight T-shirt manufacturing guide to separate initial shade, approved variation range, body/rib/thread response, laundering change, rubbing transfer, print behavior, lot traceability and packaging contact. One color name or wash recipe does not prove all these outcomes.
