Even the toughest terrain won"t penetrate Mountain Hardwear Mens ScreeTM Gaiter, a slip-on protective leg cover that neither slows you down nor makes you sweat. * The lightweight, air-permeable blend of nylon and elastane stays firmly in place with a 3M dual-lock adhesive and optional lace cord and side loops. * Designed to fit hiking boots and trail-running shoes, Mountain Hardwear Mens ScreeTM Gaiter is essential gear for backpacking hiking or running the trails. * Known as Switchback Plus, the fabric has an ultraviolet protection factor of 50 that keeps harmful rays at bay as easily as it deters thorns brambles and rocks.