Cotton Interlock Knit Fabric for Bras — Specification, Uses and Sourcing Notes
Cotton Interlock Knit Fabric for Bras: Specification, Uses and Sourcing Notes
Cotton Interlock Knit 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
Cotton gives interlock knit fabric its durability under wash and abrasion. In practice that means the fabric behaves differently in cutting, in finishing and in wear: tighter tolerance is needed on the finished dimension. 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 | Interlock Knit Fabric |
|---|---|
| Base material | Cotton |
| Standard size | 280 gsm |
| Common finishes | Silicone Wash Finish, Chrome Plating, Brushed Silver Finish |
| Processes | Garment Washing, Calendering, Heat Setting |
| Typical application | Bras |
| Related applications | Swimwear, Suits, Caps, Jackets |
| Test standard | Bluesign |
| Usual packing | 200 pieces per polybag, 10000 per carton |
Properties that matter in buying
- Dimensional stability — 1% allowance is built into the spec before cutting.
- Colour fastness — tested to Bluesign on the actual base material, not on a substitute.
- Mechanical performance — cycle life after 50 cycles or washes.
- Compliance — Bluesign documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Blazers
- Suits
- Socks
- Down Jackets
- Gloves
- Backpacks
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 flannel fabric, magnetic snap, lobster clasp, chain trim, and the processes most often paired with interlock knit fabric include weaving, calendering, rotary printing.
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