The double-layer fabric has an ultra-warm, brushed inside and a supple, quick-drying outside. Water-repellent fabric overlays at the front for added protection from the elements. The stretchy center back waistband pocket is waterproof for safe and secure storage of your smartphone. The material wicks away sweat and dries very quickly. The 4-way stretch fabric ensures greater freedom of movement in all directions. Framed elastic waistband with drawcord inside. Secure side pockets with zip. Zips at the ankles for a customized fit and easy on and offThe double-layer fabric features an ultra-warm, brushed interior and a smooth, quick-drying exteriorWater-repellent fabric overlays at the front for added protection from the elements