A 420 denier, high-quality nylon 6 with DWR surface treatment and PU coating on the interior. The fabric has a supple but firm structure that is pleasant feel to the touch.

Challenge Sailcloth's UltraGrid is a 200 denier, 100% pre-consumer recycled fabric with UHMWPE ripstop yarns for extra tenasity. DWR on the surface and a PU coating on the interior.

Challenge Sailcloth's most advanced fabric! Woven with UHMWPE, it is twice as strong and a third of the weight of 500D Cordura. Laminated to a film backing makes the fabric waterproof.