Windproof, waterproof, breathable, lightweight and durable, the women's Arc'teryx Alpha jacket is designed for unforgiving environments, shifting conditions and the realities of alpine travel. TYPE OF WATERPROOFING 3-layer GORE-TEX Pro waterproof/breathable construction VENTILATION Pit Zips BACK LENGTH Hip-length WEIGHT 11.6 ounces GORE-TEX Pro 3-layer construction delivers complete weather protection with strategically placed narrow GORE® seam tape (8 mm width) GORE-TEX Pro Most Rugged reinforces high-wear areas Hadron™ face fabric zones in low-wear areas provide weather protection for reduced weight and increased breathability Arc'teryx Nu water repellent treatment Micro-seam allowance (1.6 mm) reduces bulk and weight Women-specific design for optimal fit and performance RECCO® reflector can aid search and rescue Helmet-compatible StormHood™ with laminated brim provides full coverage without impacting visibility Cohaesive™ hood adjustments for ease of use with mittens or gloves Reinforced hood, shoulders and forearms Tall collar and laminated chin guard with brushed microsuede facing for added comfort Full front zipper with windflap Pit zippers for easy venting Die-cut hook-and-loop cuff adjusters reduce bulk and won't catch or tear off Internal zippered pocket and 2 external volume-pleated chest pockets with WaterTight™ zippers and RS™ zipper sliders WaterTight external zippers with custom TPU zipper pulls are easy to operate and glove-friendly WaterTight zippers are highl