This Swannies Men's McKinnon 1/4 Zip Top delivers a simple style with a comfortable feel. It is made of 75% polyester and 25% spandex for durability and performance, and the top boasts full-stretch material that moves with you for added comfort. Designed with an athletic fit. Swannies Men's McKinnon 1/4 Zip Top Sky, Large - Men's Athletic Performance Tops at Academy Sports