If you turned this top into a science project, you'd probably get an A. The result is a smooth and stretchy lightweight top that helps you stay cool and dry during practice and play. Benefits: Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Knit fabric feels soft and smooth while flat seams resist chafing for comfortable wear. Product Details: 90% polyester/10% spandex. "Nike Pro" branded neck tape. Machine wash. Imported.