Ideal for wear on its own or layered under a uniform, the Nike Pro Warm Top helps keep you warm and moving naturally. Ribbing in key areas allows flexibility where you need it. This product is made with at least 75% recycled polyester fabric Soft, stretchy fabric with Dri-FIT technology helps keep you warm, dry and moving freely. Ribbed fabric under the arms puts flexibility where you need it. The color shifts as the ribbing moves. Slim fit for a tailored feel. Body: 88% polyester/12% spandex. Rib: 92% polyester/8% spandex. Machine wash. Imported.