A sports bra is the hardest piece in any activewear range to get right: it has to balance support, comfort and clean skin-contact construction at a price your buyers will pay. As a vertically integrated sports bra manufacturer with low MOQ (200–300 pcs per style), Linked Sourcing develops and produces low-, medium- and high-impact bras for gymwear and fitness brands shipping into Europe, North America, Australia and Japan — using the same seamless and four-needle six-thread lines that run our active and yoga and seamless programs. Below is how support levels, construction and fabric choices actually map to a manufacturable spec.
Support levels: low, medium and high impact
Support level is the first decision because it drives almost every construction choice downstream. Get this right before you brief fabric or cups.
| Support level | Best for | Typical construction |
|---|---|---|
| Low impact | Yoga, pilates, lounge, light studio | Single-layer knit, pull-on, light or no padding, soft elastic |
| Medium impact | Gym training, cycling, general fitness | Compression knit, removable pads, wider band, racerback |
| High impact | Running, HIIT, court sports | Encapsulation + compression, molded cups, structured band, adjustable straps |
Low-impact bras rely on the fabric’s own compression and a clean bonded band. Medium-impact gymwear bras add a defined underband and a racerback for shoulder freedom. High-impact bras combine encapsulation (separating and supporting each cup) with overall compression, usually meaning molded cups, a structured underband and adjustable or convertible straps. The higher the impact, the more components — and the more your fabric and cup choices have to work together.
Construction: cups, pads, seams and backs
Molded cups vs. pad pockets. Molded foam cups give a smooth, pre-shaped front with consistent coverage — ideal for medium and high impact. Removable pads in an internal pocket keep the same bra flexible across SKUs and markets (many EU buyers prefer removable, many US buyers prefer fixed). We tool both, and a single style can ship in pad-pocket and molded versions off the same block.
Bonded vs. stitched. Bonded seams — joined with laser or thermal heat-bonding rather than thread — give a flat, chafe-free, near-invisible edge that’s right for premium seamless and high-sweat training bras. Stitched construction using four-needle six-thread and flatlock seams is more durable under heavy load, easier to grade across an extended size range, and generally lower cost. We use both, and often combine them: bonded edges with stitched structural seams where the bra carries real load.
Backs and straps. Racerback designs free the shoulders for overhead and dynamic movement and are the default for gym and high-impact styles. We also build U-back, cross-back, clasp-back and convertible strap systems, with bonded or knitted-in elastic at the band so it stays flat and recovers wash after wash.
The fabrics we actually run
Sports bra hand-feel and support come straight from the knit. These are real blends running on our seamless and active lines, not generic jersey:
- Buttery nylon–spandex (78% Nylon / 22% Spandex, up to 67/33) — the high-compression, second-skin handle behind premium training bras.
- Polyamide–elastane and polyamide–polypropylene seamless blends (92% Polyamide / 8% Elastane; 89% Polyamide / 8% Polypropylene / 3% Elastane) — knitted-to-shape on Santoni and Shima Seiki machines for built-in support zones and no side seams.
- Silver-fiber constructions (72% Polyamide / 15% Silver Fiber) for odor control and thermal regulation in high-sweat fitness bras.
- Swim-grade nylon–spandex (86% Nylon / 14% Spandex) when a bra crosses into swimwear or chlorine-resistant resort ranges.
Over 60% of our active fabrics are recycled or eco, and all are PFAS-free — increasingly a buying requirement in the EU.
MOQ, sampling and lead times
We keep MOQ low so new and growing brands can launch a real range without overcommitting inventory:
- MOQ: 200–300 pcs per style, with small-batch pilot runs and sample-cost deduction for new brands.
- Sampling: 7–10 working days for a fit/proto sample.
- Bulk production: 30–45 days after sample and PO confirmation.
- Trade terms: FOB, CIF or DDP; payment by T/T, L/C or open account.
You can run a tight first drop, validate fit and support on real bodies, then scale the winners. See our OEM vs ODM activewear guide to decide whether you send a tech pack (OEM) or co-develop the bra from concept with our in-house design team and fabric library (ODM).
Quality and certifications
Because a sports bra is worn directly against the skin during heavy sweating, skin-contact safety is non-negotiable. OEKO-TEX STANDARD 100 is the cert that matters most here, confirming the fabric and trims are free of harmful substances. We back it with BSCI and Sedex (social compliance), bluesign (cleaner dye and finish chemistry) and GRS (recycled-content verification), with third-party SGS, BV or Intertek testing available on request. Every order runs through three QC stages — IQC, IPQC and FQC — at AQL 2.5.
As a factory-direct group of six owned, vertically integrated factories (~515,000 pcs/month) with ~1,200 in-house workers, your bra program is knitted, cut, bonded, sewn and inspected under one roof — not subcontracted out through a trading middleman. That keeps fit, support and skin-contact quality consistent from sample to bulk.
Start your sports bra program
Whether you need a low-impact yoga bra, a medium-impact gym staple or a high-impact running bra, we can move from tech pack or sketch to a fit sample in about a week. Send your sports bra tech pack or reference sample to Jerry for a same-week sample quote and a low-MOQ production plan.