Bi-component fabric prevents heating up or cooling down too quickly by drawing moisture away from the skin and preventing it from returning. Spandex compression provides increased support, thus reducing muscle fatigue. The outer fabric surface is highly abrasion-resistant and durable while soft fibers on the inside provide next-to-skin comfort. Features: breakthrough technology that provides maximum warmth and comfort without the bulk, VisaEndurance odor control, fabric maintains constant temperature, soft interior, durable exterior, composition is 66% nylon/19% polyester/15% spandex. Color: Black. Machine wash. Imported. Available in sizes listed below.