Arc'teryx Shashka IS Jacket - Women's: Lightly insulated GORE-TEX jacket for warmth and weather protection on backcountry tours. | IS: Insulated. Some days require more warmth. The fully featured Shashka IS Jacket has GORE-TEX Pro waterproof protection and OctaA(R) Loft breathable insulation for warmth on cold backcountry ski and snowboard tours. The helmet compatible StormHood(TM) gives full coverage and maintains peripheral vision, a powder skirt helps seal out snow, and the women's specific design and articulated patterning elevate freedom of movement. Pockets are simple and smart, WaterTight(TM) zippers won't accumulate snow, and the CohaesiveA(R) hood and hem adjusters are streamlined and efficient. Features: Insulated - Thermally insulated products that provide efficient warmth and protection from the elements. GORE-TEX - Waterproof, windproof and breathable textiles that offer fully protective environmental shelter. Skiing and Snowboarding - Designed with specific snowsports features for efficient protection, layering and movement. Waterproof Material - Impervious to penetration by water molecules, these materials provide shelter and protection.