The Fox Rookie Polo is built with dri-release so there is nothing to wash or wear away. Skin temperature reduction keeps you up to 6 degrees cooler than normal tees and dries 4 times faster than cotton. Fresh Guard is built into the garment to help eliminate retaining body odor. The Rookie SS Polo features a 3-button placket and reflective heat transfers at chest and left sleeve. 85% Polyester/15% Cotton Dri-Release Jersey 155 gm.