MTS Junk Big Bang Lite Headband JUNK’s Technical T-Shirt fabric is a breakthrough technology specifically designed to keep you cool while emulating a super comfortable t-shirt feel. This is the best athletic headband you'll ever wear! One size fits most Machine washable Lightweight, single ply Blend of 89% polyester/11% spandex Breathable, soft & cool against the skin Wicking to help pull sweat away from the skin & quickly dry Designed, Printed, & Sewn in the USA