Mountain Hardwear Scree Gaiter Fabric Even the toughest terrain won't penetrate Mountain Hardwear Mens Scree 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 Scree 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.