87% Polyester 13% Spandex Swimwear Fabric 175gsm — 5540 Solution-Dyed Black Stretch Knit for Swimsuits and Sportswear | China Weijin

175gsm polyester spandex swimwear fabric. 5540 solution-dyed black yarn. It hits a good middle ground — not as thin as training swimsuit fabric, not as heavy as competition-grade compression fabric. The hand feel is smooth and compact with a clean surface finish. The 13% spandex content gives it a firm but comfortable stretch — it holds the body without squeezing. Recovery is strong: stretch it out and it snaps back clean, no sagging or bagging after repeated wear.

This one's built for swimwear that needs to hold up. The solution-dyed black yarn means the color is locked into the fiber — it won't fade or wash out the way piece-dyed fabrics do. Chlorine-resistant enough for recreational swimming and regular use. The polyester base gives it good UV resistance compared to nylon-based swim fabrics. Won't pill or fuzz with normal wear. Holds its stretch recovery through dozens of washes. If you've had issues with black swimsuits turning gray after a few months, this fabric solves that problem.

1. What does "solution-dyed" mean, and why does it matter?

Solution-dyeing means the color is added to the polyester polymer before the yarn is extruded — the pigment becomes part of the fiber itself, not just a coating on the surface. For black swimwear fabric, this means the color won't fade, wash out, or turn gray over time. Standard piece-dyed black fabric will start looking tired after 20-30 washes. Solution-dyed black fabric still looks new after 100 washes. It's the difference between a swimsuit that lasts one season and one that lasts multiple seasons.

2. Is this fabric chlorine-resistant? How long will it last in a pool?

Yes, polyester spandex is naturally more chlorine-resistant than nylon spandex. This fabric is suitable for regular recreational swimming. For competitive swimmers who spend hours in highly chlorinated pools daily, we recommend testing it first. For typical consumer use — beach vacations, weekend pool trips, regular fitness swimming — it will hold up well for multiple seasons.

3. What's the stretch like? Does it have good recovery?

It has 4-way stretch with strong recovery. The 13% spandex content gives it a firm, supportive stretch — it moves with the body but snaps back into shape. After wearing and washing, it won't sag at the seat or bag at the knees. Good recovery is one of the most important qualities in swimwear fabric, and this one delivers.

4. What's the MOQ? Can I get a sample before ordering?

MOQ is 500 yards per color for stock colors. For custom colors, minimum is 500 yards per color. Samples are free — you cover shipping. We ship swatches within 24 hours of your request. We recommend testing the fabric with your production setup before committing to a bulk order.