Mountain Hardwear Men's Wicked Long Sleeve Zip T-Shirt Fabric A versatile athletic tee with our Wick Q moisture-wicking technology The Wicked Zip Tee is made from a lightweight, interlocking polyester fabric that is comfortable and very durable Itll keep you cool and dry during all kinds of activities, from easy jogs around the neighborhood to intense weightlifting sessions -length zipper for extra cooling when you need it