Developed for Base Layers, this Rib Knit answers the most common brief we receive: next-to-skin comfort with continuous moisture movement. The yarn package is polyester spandex with charcoal loaded filament, chosen because it provides permanent odour adsorption built into the yarn rather than the finish, and the finished cloth is set and tested so that Four-Way Stretch Recovery.

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 | 170 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
Performance comes from three decisions: the yarn, the stitch and the finishing route. polyester spandex with charcoal loaded filament supplies the base behaviour, a rib knit sets how air and moisture move, and finishing is kept deliberately light so the attributes survive washing.

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
Specified mainly for Base Layers, and suited to any programme where next-to-skin comfort with continuous moisture movement is written into the brief. Designers use the same base for matching styles, which keeps colour continuity simple across a collection.

Four-Way Stretch Recovery fabric prepared for Base Layers production
Dyeing, finishing and customisation
Dyeing runs on a controlled recipe with consolidated dye lots to hold shade continuity. Finishing options include wicking, antibacterial, soft touch and anti-pilling, applied after lab trials so the hand approved in sampling is the hand delivered in bulk.
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
Sampling is fast: A4 hand feel cards, laboratory dips and a 5 metre trial roll within a week. Bulk runs in 20-25 days, with inline inspection and a final random inspection before packing.

Roll inspection and packing before shipment
Frequently asked questions
What is the minimum for a first order? Development starts at 300 metres per colour, which is enough for a proper wear trial and a small capsule. Bulk pricing improves at 1,000 metres and above per colour.
Can we get recycled content with this construction? In most cases yes. GRS certified recycled nylon or polyester can replace the virgin yarn with full chain of custody documents, usually with no visible change in hand or performance.