Racerback Sports Bra

A sports bra is a close-fit support garment engineered for movement, usually using compression, encapsulation, or a hybrid of both.

Common options include nylon/elastane, polyester/elastane, recycled performance knit, power mesh, brushed elastic, and optional molded cups.. Choose based on target price, handfeel, durability, and care requirements.

Focus on stabilized straps, clean binding, bartacked elastic joins, lined front panels, and a wide underband with controlled stretch. These details usually determine whether the product feels credible or cheap.

Check cup coverage, underband tension, strap length, armhole height, neckline security, and movement testing. Fit should be reviewed on the body type and use case the product is designed for, not only on a flat measurement sheet.

The main cost drivers are fabric weight, lining, power mesh, molded cups, branded elastic, and the number of seams and binding operations. Sampling time and rejection risk also increase cost when the fit is sensitive.

Request checks for stretch recovery, opacity under strain, underband roll, strap slippage, and seam abrasion. For performance or workwear products, test under the real use condition rather than only visually.

Watch for underband rolling, cup gaping, transparent fabric, strap twist, and elastic that fails after washing. These issues should be caught at fit sample, pre-production sample, and bulk inspection stages.

affordable uses single-layer compression; premium adds lining and power mesh; luxury adds refined handfeel, bonded edges, or branded hardware.

Include support level, size grading, stretch direction, elastic width, lining map, cup option, and underband measurement after stretch. Add reference photos and tolerance notes where fit or construction is easy to misread.

activewear or swimwear factories with coverstitch, binding, and stretch-quality control are the right fit.

Use OEKO-TEX STANDARD 100 as a consumer-safety baseline where possible. Use GOTS for organic cotton, GRS for recycled polyester or nylon, RWS for responsible wool, and leather-specific or chemical compliance where relevant to the material.

cold wash, low heat, and avoided fabric softener help preserve elastane recovery.