These shell pants are designed for ski touring and are suitable for general skiing activities, all-year mountaineering, and hiking.Norrona usesGORE-TEX fabric because its the world-leading quality for durable waterproofness (28,000mm), optimized breathability (RET Less than 13), and total windproofness.The main material is a 3-layer woven ePE GORE-TEX fabric with a 100% recycled nylon face and backer, 120gm2. The bottom leg is reinforced with a 200D durable Vectran fabric, 260gm2, to increase cut and tear resistance.