Ice Climbing / High-altitude Trekking Material: WINDSTOPPER BY GORE-TEX LABS Outer layer features WINDSTOPPER BY GORE-TEX LABS fabric, durably windproof with reliable breathability, water resistance and quick sweat dissipation, delivering a dry and comfortable wearing experience during activity in dry and frigid conditions. Light fleece lining feels soft against the skin, providing steady warmth in frigid conditions. Upgraded from the previous generation with added ventilation zones in high-sweat areas, including the back waist, calves, and crotch to prevent sweat buildup, keeping you warm without stuffiness. Upgraded side ventilation system with a three-slider zipper enables independent ventilation adjustment across multiple zones for precise control over the ventilation range. Upgraded details: taped design at the seams reduces friction from exposed stitching. Raised back waist design keeps the waist effectively warm in cold conditions, with suede fleece added inside for doubled comfort. Inclusive Waist Cut / Adjustable waist belt design Easy On/Off for Boot Compatibility / Side-zip design with elasticised cuffs Better Boot Coverage, Blocks Wind and Snow / Boot gaiter hook at cuff Prevents Crampon Damage / Cuffs paneled with ultra abrasion-resistant material Less Crotch Restriction, Agile Striding / Diamond gusset design Fit: Performance Thickness: Thickened (Fleece-lined)