TPU membrane is environmental protection material,which could be able to bear cold,could breathe freely,anti-oxidation. Detailed Description:(1)Construction:Three layers,both layers is yellow Lycra babric,TPU is 0.025mm waterproof and breathable membrane.(2) WIdth:60"(3)Color:Yellow(4) It could be used ith the waterproof shoes,waterproof bag.Welcome to contace Us!!! TPU membrane with fabric