These top-of-the-range leggings are made of Nano Flex: warm and comfortable when it's dry, water-repellent when it's wet, and still warm in extreme conditions. Features Water-repellent, thermal and breathable Nano Flex 3G fabric. Single, flat seam. Double-sided silicone grippers to hold the leggings in place. Zippers at the ankles for easy on and off. Weight: 119g.