Activewear material comes in many different forms and is an important aspect when choosing activewear that best suits your comfort levels and gym routines. Each material has its advantages and downsides. The main materials used in manducating activewear include cotton, nylon, polyester, polypropylene, spandex and wool. The best ones to choose are those that are lightweight, breathable, non-chafing and absorb moisture. Polyester is great for most activities, wool is great for socks and sweatpants, whereas spandex and nylon are great options for those who prefer stretchy, form-fitting and moisture-wicking fabrics.