Silnylon is the name of a synthetic fabric made by impregnating nylon ply with silicone liquid. This gives it strength and waterproofing and alters the feel of the material. A very durable material, it is used widely in lightweight hiking equipment such as backpacks, tents, tarps and stuff sacks but not in applications where the fabric needs to breath because it is a very effective vapor barrier. Variations in manufacturing allow its qualities to be controlled as appropriate to the application in which it is being used. The most widely used variants are smooth and silky to the touch giving low friction and rip-resistance. A wide range of colors is available.