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. LT: Lightweight. Built with highly durable top performance materials but designed with a streamlined minimalist set of features to provide very light weight. Crossing boundaries, the Gamma LT Jacket is designed for active outdoor use and styled for relaxed everyday living. Constructed with an extremely durable non insulated softshell textile with a soft inner face, this adaptive three season jacket is equally at home in the mountains or around town. Features: Weather resistant Moisture resistant outer face fabric Breathable Highly durable Wind resistant DWR finish Durable Water Repellent helps repel water from fabric surface Mechanical stretch textile for unrestricted mobility Soft, inner face fabric is comfortable next to skin Articulated patterning for unrestricted mobility Gusseted underarms Stretch wrist gussets Athletic fit for a slimmer more flattering profile Laminated chin guard soft brushed lined collar Full front zip with wind flap Laminated cuffs Adjustable hem drawcord Laminated hem Laminated sleeve pocket with laminated zip Two hand pockets with zippers Embroidered log Athletic Fit, Hip Length Weight: 515 g 1 lb 2.2 oz Activity: Backcountry Skiing Rock Climbing Alpine Climbing Hiking Trekking Materials: BurlyTM double weave 46% nylon, 46% polyester, 8% elastane, 275 gm . A hard wearing, durable, stretch woven fabric with a smooth outer face and a soft inner face that is comfortable next to the skin. A DWR durable water repellent coating helps shed moisture.