Gamma Series: Highly breathable textiles with stretch and differing degrees of thermal efficiency that can be worn as water resistant outer layers. High degree of abrasion resistance. MX: Mixed Weather. Designed for mixed usage in changing weather conditions and diverse activities by providing high durability, breathability and mobility. Adopting a guide's calculated mentality, the MX Pant is prepared for sudden shifts in weather, objectives or perspectives. Stretchy, breathable and weather shedding fabric tackles everything from mixed routes to epic tours. Features: Weather resistant Highly breathable maintains comfort during aerobic activity Wind resistant lightly insulated Stretchy fabric allows you to move more freely Gusseted crotch Athletic fit for a slimmer more flattering profile Boot cut Front fly with snap closure Adjustable pant cuff drawcord Adjustable integrated webbing belt Comfort waistband with laminated, soft brushed finish Two hand pockets Two thigh pockets Reinforcements Reinforced instep patch Athletic Fit Weight: 545 g 1 lb 3.2 oz Activity: Backcountry Skiing Ice Climbing Alpine Climbing Hiking Trekking Materials: Fortius 2.0TM 53% polyester, 27% nylon, 20% elastane, 160 gm . A membrane free, air permeable, four way stretch woven nylonspandex fabric laminated to a low profile, mid weight four way stretch fleece.