Rubber Spandex Fabric for Bras — Specification, Uses and Sourcing Notes
Rubber Spandex Fabric for Bras: Specification, Uses and Sourcing Notes
Rubber Spandex Fabric is the version buyers specify for bras when the base material is fixed by performance rather than by price. This entry sets out what the material actually changes, which specification to write into the tech pack, and where the cost sits — the three questions that decide whether the item passes bulk approval.
What it is
Rubber gives spandex fabric its strength and surface character. In practice that means the fabric behaves differently in cutting, in finishing and in wear: the finish has to be applied before assembly. Buyers who specify the material up front avoid the most common failure — an item that looks right on the sample card and behaves differently in bulk.

Typical specification
| Item | Spandex Fabric |
|---|---|
| Base material | Rubber |
| Standard size | 400 gsm |
| Common finishes | Matte Black Coating, Nickel-Free Electroplating, Mercerised Finish |
| Processes | Weft Knitting, Injection Moulding, Screen Printing |
| Typical application | Bras |
| Related applications | Workwear, Suits, Home Curtains, Scarves |
| Test standard | ISO 105 Colour Fastness |
| Usual packing | 100 pieces per polybag, 2000 per carton |
Properties that matter in buying
- Dimensional stability — 2% allowance is built into the spec before cutting.
- Colour fastness — tested to ISO 105 Colour Fastness on the actual base material, not on a substitute.
- Mechanical performance — abrasion resistance after 30 cycles or washes.
- Compliance — ISO 105 Colour Fastness documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.

Common uses
- Bras
- Sneakers
- Jeans
- Baby Clothing
- Blouses
- Bedding Sets
How to specify it
- Name the base material in the tech pack, not just the item.
- Fix the size and tolerance in writing before sampling starts.
- Approve a counter sample made from the actual bulk base material.
- Order the test report against the standard your market requires.
- Retain a golden sample at the factory and a second one with you.
Related reading
Related specifications on this site cover spandex fabric, seersucker fabric, nylon webbing, stud trim, and the processes most often paired with spandex fabric include screen printing, moisture wicking finishing, ultrasonic welding.
Tell us the item, the quantity and the delivery window. We will quote it with the sub-processes named, so the lead time you approve is the lead time you get.



