Short answer: approve one base-size garment in the intended fabric before locking the full grade. Give every point of measure (POM) a diagram, finished-garment value, measuring method, grade rule and bulk tolerance. Then review the graded pattern or size set, fit at least the sizes that represent your main and boundary risks, confirm movement and recovery, and freeze one dated specification with the approved sample. A body size chart alone is not a production measurement chart.
Linked Sourcing has two different routes, and the sizing work is not the same:
- Ready Styles from 50 pieces per style: choose an existing product, fabric, fit and available size range from the current private Excel catalogue. You do not need to create a new grading specification. Request the current catalogue and stock quotation sheet from Jerry.
- Full Custom Manufacturing from 200 pieces per color and style: define or approve the target body profile, base size, finished-garment measurements, grade rules, tolerances and fit samples. Start a Full Custom fit and sizing review.
If changing the fit, pattern, size range, compression or key proportions is essential, treat the project as Full Custom rather than assuming an existing Ready Style can be regraded inside the 50-piece route.
Body measurements, garment measurements, grading and tolerance are different
Many fit problems begin because four separate ideas are placed in one spreadsheet column.
| Term | What it controls | What it does not control by itself |
|---|---|---|
| Body measurement | The intended wearer or target population | The finished dimensions of a garment |
| Finished-garment measurement | A physical POM on one finished size | How the pattern changes into other sizes |
| Grade rule | The change in a POM or pattern point between sizes | The allowed production variation within one size |
| Bulk tolerance | The accepted plus/minus variation around one size specification | The distance between adjacent sizes |
| Ease or negative ease | The relationship between body and garment dimensions | Fabric power, recovery, opacity or support on its own |
ISO 8559-1:2017 defines anthropometric measurements used to describe bodies and develop size-and-shape profiles; ISO confirmed that edition again in 2026. The current ISO 8559-2:2025 addresses primary and secondary body-dimension indicators for clothing size designation. These standards help make body-measurement language consistent. They do not supply a brand-specific finished-garment chart, activewear ease allowance or grade rule.
That distinction matters in stretch products. A legging can measure smaller than the body because it is designed with negative ease, but two fabrics cut to the same dimensions can feel different if their elongation, power and recovery differ. Lock the intended fabric alongside fit; the activewear fabric weight and stretch guide explains why composition and GSM alone cannot predict compression or recovery. If a pressure or compression claim is planned, use the compression activewear testing guide to add a size/body/posture measurement matrix. For sports bras, use the support testing guide to keep static fit separate from breast-motion, strap/underband-pressure, perception and after-care decisions. For leggings and bike shorts, the opacity and squat-proof testing guide shows how negative ease, color, risk zone, lighting and movement become a separate controlled garment protocol.
For built-in-bra tanks, the shelf-bra, cup and fit manufacturing guide adds separate outer-shell and inner-shelf POMs, underband position, pad/cup and pocket grading, strap adjustment range, neckline/armhole coverage and after-care fit. Brand cup-group labels are not universal cup volumes and should not be copied into a grade without the buyer’s body chart and fit matrix.
The 10-step activewear fit and grading workflow
1. Define the wearer, activity and fit promise
Before drawing a grade, state who the size range is designed for and what the product must do. Record:
- destination market and intended customer profile;
- product type and activity, such as yoga, running, tennis, swim or studio-to-street;
- fit direction, such as relaxed, close, compressive, low-impact support or high coverage;
- intended rise, body length, cup or underband logic, and coverage level;
- proposed size range and which sizes are expected to carry the most volume;
- any retailer, marketplace or internal size-chart requirements.
Do not copy another brand’s XS–XL chart and assume the labels describe the same bodies. Letter and numeric size names are not universal fit specifications.
2. Choose one controlled base size
The base size is the pattern and sample from which the range is developed. Record its size code, intended body profile, fit-model or mannequin measurements, fabric version, pattern version and sample date.
Use a fit model whose current measurements are recorded, not only a person who says they normally wear “medium.” The same wearer can take different labels across brands, and an unrecorded change in the fit model can be mistaken for a pattern problem.
The base size should sit in a useful part of the range, but there is no universal base label for every market or product. The buyer and pattern team should choose it deliberately.
3. Build a POM diagram that removes interpretation
Every measurement row needs a numbered point of measure that matches an illustration. Define:
- where the tape starts and ends;
- whether the value is a half measurement or full circumference;
- whether the garment is measured flat, on a form or under a specified extension;
- whether curves follow the seam or are measured straight;
- whether waistbands, elastics and straps are relaxed, extended or adjusted to a set position;
- how the garment is conditioned and placed before measurement;
- the unit and rounding rule.
“Hip,” “rise” or “strap length” is not enough when two technicians can place the tape differently. The method must be repeatable before a tolerance can be meaningful.
4. Select POMs that control the product’s real risk
Do not fill a chart with measurements that never influence fit or inspection. Prioritize the dimensions that control coverage, mobility, support, balance and appearance.
| Product | High-value POMs and controls to consider |
|---|---|
| Leggings | Waist relaxed and agreed extension, high hip/hip, front and back rise, inseam, thigh, knee, leg opening, waistband height and gusset position |
| Shorts | Waist, hip, rise, inseam, leg opening, side length, liner, gusset and pocket opening/placement |
| Sports bra | Underband relaxed and agreed extension, body/bust width, neckline, armhole, side seam, strap length, cup or pad-pocket position and bottom-band height |
| Top or jacket | Chest, waist, bottom opening, body length from a fixed point, shoulder, sleeve, bicep, cuff, armhole and hood or collar dimensions |
| One-piece or bodysuit | Torso length, bust, waist, hip, rise, leg opening, neckline, strap and gusset dimensions considered together |
These are planning prompts, not a universal specification. The final POM list must match the pattern, construction and intended use of the actual style.
For leggings without a conventional center-front seam, the no-front-seam gusset, fit and manufacturing guide adds front/back rise paths, crotch extension, gusset dimensions and endpoints, thigh interaction, material behavior and risk-size movement checks. A base-size smooth front does not approve the full grade.
5. Separate the base specification, grade increment and tolerance
A production chart should make the arithmetic visible. It can show every size measurement directly or show a base spec with controlled grade rules, but the final values must be unambiguous.
| Field | Example format | Approval question |
|---|---|---|
| Base-size finished spec | Brand-defined value and unit | Does the approved sample match it? |
| Grade to next size | + / − change for this POM | Does this change preserve fit and proportion? |
| Adjacent-size finished spec | Explicit calculated value | Does the size-set sample confirm it? |
| Bulk tolerance | Separate ± limit for this size/POM | Is it realistic, measurable and fit-safe? |
Do not use one blanket grade increment for waist, hip, rise, inseam, strap, neckline and leg opening. Each area changes in relation to body growth, style balance, construction and fit intent. Do not use tolerance to hide an incomplete specification: a sample at one edge of tolerance still has to perform acceptably.
6. Approve base-size fit before freezing the grade
First measure the sample against the latest specification. Then fit it on the recorded wearer or form in the intended underwear and use conditions. Check both static appearance and movement.
An activewear fit session can include product-appropriate actions such as:
- standing, sitting, reaching and twisting;
- squat, lunge and hip flexion for bottoms;
- arm raise and cross-body reach for tops and bras;
- walk, run or impact movement when the support claim requires it;
- checking waistband roll, slide or gaping;
- checking neckline, armhole, leg opening and underband pressure;
- checking coverage and opacity at actual wearing stretch;
- checking seams, gussets, pads, pockets and hardware during movement.
Record observations; do not convert “feels wrong” directly into a pattern change. First determine whether the sample is off spec, the specification is wrong, the fabric behaves differently, or the construction creates the problem.
For pocket leggings, use the phone fit and load-testing manufacturing guide to grade usable internal capacity, opening, placement and waistband anchoring across risk sizes and length options. One base-size phone fit does not approve every body, size or device.
For bottoms, the leggings waistband fit and manufacturing guide separates folding, rolling, sliding, gaping, digging, twisting and crotch-drop symptoms so the grade is not changed before the actual mechanism is identified.
7. Issue measurable fit comments
Use one dated comment sheet for each round. A useful row contains:
| Field | What to record |
|---|---|
| Reference | Sample version, size, color and fabric lot/reference |
| Location | POM number, seam, panel or construction callout |
| Evidence | Actual measurement, photo and movement observation |
| Decision | Accept, reject, revise or monitor |
| Requested change | Numeric or clearly drawn change, not “make it better” |
| Responsibility | Buyer, pattern team, sample room or material team |
| Status | Open, revised, approved or superseded |
Front, side and back photos should use a repeatable stance and identify the sample version. Consolidate decisions in one master file instead of mixing different instructions across WhatsApp, email and old PDFs.
8. Audit the graded range and sample the risk
After base approval, inspect the graded pattern or measurement nest before requesting a size set. Look for abrupt jumps, reversed increments, broken seam matching, distorted panels and trim lengths that no longer agree with the garment.
The physical size-set plan should be risk-based. A narrow, simple range may need fewer verification sizes than a broad range, sports bra system, seamless style or highly compressive garment. Include the base size and the sizes most likely to expose boundary, proportion or support problems. Sampling only the middle size cannot prove that the smallest and largest patterns remain balanced.
Check:
- how girth and length change together;
- waistband, underband, strap and opening pressure;
- rise and torso balance;
- panel, gusset, pocket, logo and print placement by size;
- bra cup, pad pocket and underband coordination;
- seam lengths and notches after grading;
- whether trims and hardware work across the range;
- whether the intended size labels match the approved body chart.
Seamless products need an additional manufacturing check because machine diameter, yarn, knit mapping and construction can constrain how sizes are grouped or engineered. Do not assume a cut-and-sew grade transfers directly to seamless production.
The seamless vs cut-and-sew manufacturing guide adds the machine/program/size-group matrix and explains why circular seamless, flat-bed whole-garment and cut-panel fit systems are not interchangeable.
9. Recheck dimensions and fit after the agreed treatment
Fit approval before washing does not answer what happens after laundering. If dimensional stability is part of the requirement, define the preparation, washing/drying or other treatment and the number of cycles before testing.
ISO 3759:2011 covers preparing, marking and measuring fabrics and garments for dimensional-change tests. ISO 5077:2007 covers determining dimensional change after specified washing and drying procedures. Both remain published standards as of this review. The applicable treatment still has to match the care instruction, product and buyer requirement.
Record pre- and post-treatment measurements, appearance, twisting or spirality where relevant, elastic recovery and any change in fit. A passing dimensional-change result does not automatically prove acceptable on-body fit; use both measurements and the agreed fit assessment.
The activewear shrinkage and dimensional-stability wash test guide connects these measurements to the exact wash/dry procedure, cycle count, sign convention, garment-versus-fabric scope and separate spirality/appearance decisions.
For golf polos, use the golf polo manufacturing guide to grade neck/collar, shoulder/back, chest or bust, armhole/sleeve, waist/sweep, body length/vents and decoration together, then verify risk sizes in address, backswing and follow-through positions. “Athletic fit” and four-way stretch are not grade rules.
For flare leggings, the fit, inseam and hem manufacturing guide shows why short, regular and tall are brand-specific length families: knee position and flare break may need to move with inseam rather than adding or removing fabric only at the hem.
10. Freeze the production reference
Before bulk cutting, the purchase order, approved pre-production sample, pattern version, measurement chart, grade, tolerances, BOM and comments must describe the same product.
The final approval package should include:
- one style code, size range, unit and dated revision number;
- body size chart and finished-garment chart clearly labelled as different documents;
- POM diagram and measuring conditions;
- final base and all-size specifications;
- approved grade rules or graded pattern version;
- POM-specific bulk tolerances;
- approved fabric, construction and trim references;
- size-set and fit comments with every critical item closed;
- pre- and post-treatment results where required;
- approver, approval date and controlled reference sample.
If the base pattern, fabric, construction or critical measurement changes after approval, assess which sizes and tests are affected. Updating the date on the old sheet is not a technical review.
Fit approval gates by sample stage
Each sample stage answers a different question. Do not use approval of one stage to claim that all later risks are closed.
| Stage | Main sizing or fit decision | Not yet proven |
|---|---|---|
| Development/proto | Concept, proportion and construction feasibility | Final fit, grade and production materials |
| Base-size fit sample | POM method, base measurements, balance, movement and fit direction | Full range and bulk repeatability |
| Revised fit sample | Closure of specified base-fit corrections | Boundary-size performance unless sampled |
| Size set | Grade progression and fit across selected risk sizes | Production consistency across the order |
| Pre-production sample | Final fabric, trims, construction, measurements and presentation | Results from actual bulk production |
| Top-of-production or shipment sample, if required | Product made from the production line | Statistical acceptance of the whole lot by itself |
The activewear sampling process explains how development, fit, size-set and pre-production decisions connect. Your exact sample plan should be agreed for the style rather than copied from a fixed number of rounds.
Common grading and fit approval failures
- Only a body chart is supplied. The sample room still has to guess finished measurements and ease.
- The base size is changed after the grade is built. Adjacent sizes keep the old logic and the range becomes inconsistent.
- Every POM receives the same increment. Lengths, girths, openings and support components lose balance.
- Tolerance is mistaken for grade. Units within one labelled size can overlap the intended next size.
- The fabric changes without revalidation. The same pattern produces a different fit, pressure or recovery.
- Fit is approved only while standing. Movement exposes rolling, gaping, digging, slipping and coverage issues.
- Only the middle size is fitted. Range-edge problems remain hidden until production or customer returns.
- Comments have no measurement evidence. “Too tight” does not tell the pattern team where or how much to change.
- Old versions remain active. The sample, chart and purchase order refer to different revisions.
- A retailer chart is copied without a target customer decision. Size labels exist, but the range has no controlled body profile or fit promise.
Socks also need a size architecture rather than a shoe-size label alone. The grip sock manufacturing guide maps foot length, ball and instep girth, heel pocket, toe length, relaxed/extended dimensions, arch/cuff hold and risk-boundary wear checks so a loose sock is not mistaken for a grip-material failure.
What to send for a Full Custom fit review
You can start before every value is finished, but identify what exists and what the factory is being asked to develop. The broader activewear tech pack checklist covers drawings, BOM, construction, branding and testing as well as measurements.
Copy-and-send custom sizing brief
Hi Jerry, I want to develop a custom ____. Target market: ____. Order quantity: ____ pieces per color and style. Proposed size range: ____. Intended fit/activity: ____. Current base size: ____. I have a [body chart / finished-garment chart / graded spec / pattern / reference sample / none yet]. Intended fabric or stretch direction: ____. My main fit priorities are ____. Please advise what is needed for the base fit, size-set plan and quotation.
The standard Full Custom starting point is 200 pieces per color and style. Special fabric, seamless construction, molds, trims or an unusually complex size program may require a higher minimum. Send the brief through the Full Custom form.
What to send for Ready Styles
Ready Styles use the supplier’s existing pattern, standard fabric and available size range, so the first request should stay simple.
Hi Jerry, please send the current private Ready Styles Excel catalogue and stock quotation sheet. Product type: ____. Estimated quantity: ____ pieces per style. Target market: ____. Preferred available size range: ____. Please include the current size information and confirm available colors, sizes, price and lead time for the styles I select.
This route starts from 50 pieces per style, with at least 15 pieces for each selected color and size combination. Availability and price must be reconfirmed in the current quotation. Request the Ready Styles files.
For a hoodie-and-jogger set, do not assume one size letter controls both garments. The matching sweat set manufacturing guide explains independent upper/lower charts, mixed-size pairing, bundle logic and the two-style MOQ effect.
Fit approval and order allocation are separate decisions. Use the activewear size-ratio, colorway and first-order quantity plan to calculate how many units belong in each confirmed style-color-size variant.
For a tennis or active dress, grade the outer dress and inner system as connected but separately measurable components. The tennis dress manufacturing guide adds torso and liner rise, skirt and shorts lengths, leg opening, pockets, access and movement coverage to the fit-approval matrix.
For running shorts, grade the shell and liner together but measure them separately. The running shorts manufacturing guide adds outer/liner inseams, split start and overlap, coverage, leg opening, waistband, drawcord and loaded pocket placement to the size-set review.
For cycling bib shorts, grade the lower body, chamois size map and placement, brace straps, leg opening/gripper and cargo pockets as one interacting system. The cycling bib shorts manufacturing guide adds riding posture, pad-code boundaries, torso suspension, exact object loads and on-bike risk-size approval to the size set.
For running jackets, grade the body and layering ease, articulated sleeves, hood and face opening, collar/zip top, pockets, vents, drop tail, cuffs, hem and adjuster ranges as one system. The running jacket manufacturing guide adds pack/headwear states, loaded storage, weather paths, repeat packability and risk-size movement to the size-set decision.
For a heavyweight hoodie, grade chest, hem/body-to-rib ratio, body length, intended shoulder drop, sleeve/cuff, armhole, hood and opening, pocket and zipper as one loaded silhouette. The heavyweight hoodie manufacturing guide adds production-weight drape, layered fit, hood up/down, pocket load and the same risk-size review after the nominated wash/dry route.
For a heavyweight jogger, grade relaxed/extended waist, front/back rise and crotch extensions, seat, thigh, knee, calf, inseam/outseam, pocket placement/capacity and cuff/opening as one loaded silhouette. The heavyweight jogger manufacturing guide adds footwear/length, waist entry/hold, sitting, pocket load, knee-flex recovery and after-care checks in the same risk sizes.
Standards and source scope
This guide uses current official standard pages for terminology and test scope:
- ISO 8559-1:2017 — anthropometric definitions for body measurement, confirmed by ISO in 2026;
- ISO 8559-2:2025 — primary and secondary dimension indicators, which replaced the withdrawn 2017 edition;
- ISO 3759:2011 — preparation, marking and measuring for dimensional-change tests;
- ISO 5077:2007 — determination of dimensional change in washing and drying.
The standards do not prescribe Linked Sourcing’s MOQ, a universal activewear size chart, a universal grading increment or one tolerance for every garment. Those items must be defined for the buyer, product, material, construction and inspection agreement.
For boxy, oversized and drop-shoulder tees, use the heavyweight T-shirt manufacturing guide to grade chest, hem, body length, shoulder/drop, armhole, sleeve and neck opening according to the intended silhouette. Scaling every point equally can destroy the box ratio or create a restrictive/gaping collar.
