Choose nylon-elastane for a smooth, soft bra with a slight sheen, or polyester-elastane for a matte finish that holds strong colour well, and use the same one for both pieces of every set. That is the whole decision on sports bra fabric for brands working with us, and the second half of it, matching top and bottom, matters as much as the first.
Both fabrics stretch in every direction and recover their shape after wear. Both are used across our sports bra, bra-and-legging set and shorts set styles. The difference is how they look and feel, and how that suits your customer. Shoppers rarely know fibre names, but they notice the surface in a photograph and the hand in the first touch, and both shape whether a bra feels like it belongs to your brand.
Nylon-elastane
Nylon-elastane is the softer and smoother of the two. It feels slightly cool and silky when first touched, and it has a gentle sheen that catches light.
On a sports bra, softness matters because the fabric sits against the skin around the underband, straps and neckline for hours at a time. That makes nylon-elastane a natural choice for:
- yoga, pilates and studio ranges;
- bras worn all day, not only for training;
- brands built around comfort and feel;
- sets where a polished look in photographs is the goal.
The sheen is part of the look. If your brand wants a flat, sporty finish, it may not suit.
Polyester-elastane
Polyester-elastane has a more matte surface and a slightly firmer hand. It holds saturated, bright colour well, which suits brands with a bold signature colour or a range built on a colour story.
It suits:
- gym and training ranges;
- brands with bright or strong colours;
- shorts sets for warm-weather training;
- brands that also sell polyester gym tops and want a consistent matte look across the range.
It feels a little less silky than nylon-elastane. For many training customers, that is not a drawback; the matte, sporty look is what they want.
Strong colours are where polyester-elastane earns its place. A bright coral, cobalt or emerald set stands out in a listing grid and on a gym floor, and a fabric that holds that colour well keeps the set looking as it did in your photographs.
Comparing the two
| Nylon-elastane | Polyester-elastane | |
|---|---|---|
| Hand feel | Smooth, soft, slightly cool | Slightly firmer |
| Look | Gentle sheen | Matte |
| Colour | Rich, with sheen | Strong and saturated |
| Stretch and recovery | In every direction | In every direction |
| Typical range | Yoga, studio, all-day | Gym, training, colour-led |
| Logo method | Heat transfer | Heat transfer |
A small heat transfer logo on the underband or back works on both, with matching placement on the waistband of the bottoms.
Why one fabric per set matters
Customers buy a set because the pieces match. Two different fabrics in the same colour name will not match exactly: the sheen differs, the shade can read differently, and the two can change differently through washing. Using the same fabric for the top and bottom of a set means they match in colour and feel, including after washing.
Practical points:
- One fabric per set, always.
- One fabric per range if you can. A customer who buys a bra now and leggings later expects them to match.
- Check colour side by side on the sample, top and bottom together, in daylight.
- Wash both pieces together once and compare again.
If you want both fabrics in your range, give each set its own fabric and keep it consistent across colours. For example, a nylon-elastane yoga set and a polyester-elastane training shorts set. Each style has its own minimum of 100 pieces, so plan this deliberately.
Fabric and the rest of the bra
Fabric is only part of how a bra feels. The neckline, underband width, straps, back shape and pads all change the experience. A low-cut, simple bra suits yoga, stretching and everyday wear; a higher neckline with a wider underband suits gym wear and gives more coverage. Straps, back shape and pads are confirmed when you choose the style, and removable pads can be added on styles built for them.
When you try the sample, judge the fabric with the style you will actually sell:
- How does it feel at the underband and straps after an hour?
- Does the neckline lie flat?
- How does the colour look next to the matching bottoms?
- Has anything changed after one wash?
Our guide to sports bras, bra-and-legging sets and shorts sets helps match the fabric to the style and the customer.
Labelling requirements for fibre content and care differ by destination country, so the care label wording is confirmed at quotation. Send us your text and we will produce the label to it.
If you cannot decide, order a sample in each fabric and wear them side by side. Then send us your chosen style, fabric, colours, rough quantities and logo, and see the full range on our white label sports bras and gym sets page. We quote per style, by fabric, quantity and branding.