It is used almost exclusively in outerwear. Some disadvantages include a tendency to ravel and a slippery surface, which make sewing difficult. Long staple cotton is used in outerwear fabric. It is absorbent, but not very strong, and it may tend to mildew. Cotton blended with nylon or polyester is a good choice for some outerwear items.
Polyester is a strong, wrinkle-resistant fiber.
It is durable against ultraviolet radiation, which can be damaging at high altitudes or when exposed to sun over long periods. Construction of the fabric is as important as the fiber used. Two types of weave are popularly used in outerwear. Plain weave Individual threads cross over each other at right angles to form a flat, tight weave. Nylon taffeta and ripstop are used most often in outerwear.