Made of 30D diamond siliconised Cordura Nylon. The fabric is impregnated with silicone to make it waterproof. * Fabric has a slippery finish for easy packing. Reinforced pull handle on bottom. * Uses the smallest possible cord and cord lock for top closure. * Bar tack reinforced in all stress points. All seams are double stitched for extra strength. * Seams are not tape-sealed; therefore this product is not waterproof - only water resistant.