The alpine-tailored Muztag is designed to fit around a technical boot and the minimised seam construction makes it easier to slip and fit over boots. The high strength-to-weight ratio and thermal properties of the ePTFE membrane make it that step up from the standard Rab gaiter. GORE-TEX® PRO (Most Breathable) main fabric Reinforced ankle Minimised seam construction Zipless hook and loop front closure TPU underfoot strap Designed to fit a technical alpine boot Main Fabric: 40D Gore-Tex Pro (Most Breathable), 114g/m² Composition: 100% polyamide with ePTFE membrane Reinforcement: 300D nylon with polyurethane coating Garment Weight: 190g / 6.7oz