RidersBeanies come in three different materials Supplex, Body Care and Powerdry. The Supplex RidersBeanie offers the look and feel of cotton, with moisture wicking functionality and additional strength and durability for all-weather comfort. Body Care with Quick Dry and Lycra Fibers is a functional fabric targeted toward sports and active wear markets. This fabric absorbs the moisture and perspiration, while adding a bit more thickness for cooler weather. Powerdry by Polartec for cold weather riding conditions is an insulating fabric that provides warmth with minimal weight. Powerdry also offers moisture-wicking, breathability and durability. The RiderBeanies are available in four sizes, small through XL, to ensure the correct fit.