Polyester Spandex Bamboo Charcoal Four-Way Stretch Recovery Rib Knit is a rib knit developed for Leggings where squat-proof coverage and recovery at the knee and seat decides whether a style succeeds. The base is polyester spandex with charcoal loaded filament, which gives permanent odour adsorption built into the yarn rather than the finish. The result is a fabric that delivers Four-Way Stretch Recovery in daily use rather than only in a laboratory.

Polyester Spandex Bamboo Charcoal 300 GSM Rib Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Polyester Spandex Bamboo Charcoal Four-Way Stretch Recovery Rib Knit |
| Composition | polyester spandex with charcoal loaded filament |
| Construction | Rib Knit (a rib knit) |
| Weight | 300 GSM |
| Width | 160 cm |
| Function | Four-Way Stretch Recovery — extends in both directions and returns without bagging |
| Performance target | less than 5% growth after repeated extension |
| Test method | ASTM D2594 stretch and recovery |
| Additional value | recovery tested on a worn garment, not only on flat fabric |
| Stretch | Four-way, recovery above 92% |
| Certification | OEKO-TEX Standard 100, REACH compliant inputs |
| MOQ | 300 m per colour |
| Lead time | 20–25 days after approval |
Why this construction works
The construction does the work before any chemistry is added. a rib knit means high extension across the width with clean recovery, ideal for cuffs and bands, and that structure is what allows the fabric to extends in both directions and returns without bagging under the conditions Leggings actually face.

Rib Knit construction shown at close range
Performance features
- Four-Way Stretch Recovery: extends in both directions and returns without bagging, measured by ASTM D2594 stretch and recovery.
- Hand and comfort: permanent odour adsorption built into the yarn rather than the finish.
- Construction benefit: high extension across the width with clean recovery, ideal for cuffs and bands.
- Consistency: GSM and width tolerance are locked per lot and recorded on the inspection sheet.
- Durability: performance is verified after repeated washing, not only as delivered.
Recommended applications
The first choice for Leggings, where squat-proof coverage and recovery at the knee and seat is the requirement that decides the fabric. It also converts cleanly into coordinated pieces in the same programme, since the hand and the shade run together.

Four-Way Stretch Recovery fabric prepared for Leggings production
Dyeing, finishing and customisation
Available in piece dyed, yarn dyed or sublimation ready form. Functional finishes such as moisture management, antibacterial, anti-pilling and UV absorption can be applied individually or combined, and each is verified against its test method before bulk release.
Care instructions
- Machine wash at 30 degrees with mild detergent, no fabric softener.
- Dry away from direct heat and do not tumble dry hot.
- Cool iron on the reverse if needed, and avoid bleach.
Ordering, sampling and quality control
Trial quantity starts at 300 metres per colour with laboratory dips in five working days. Bulk lead time is 20-25 days after approval, and every lot ships with a test report, a shade check and an inspection record.

Roll inspection and packing before shipment
Frequently asked questions
Can the weight and width be changed? Yes. Most programmes run between 140 and 340 GSM, and width can be set between 150 and 180 cm to match your marker. Changing weight changes cover and stretch, so we re-test before confirming.
Is the performance tested on every lot? Yes. The named test method is repeated on bulk fabric, not only on the approval sample, and the report carries the lot number so results can be traced back.