Technical Climbing / Ice Climbing / High-altitude Trekking Material: HEIQ XREFLEX / APEXHEAT / 100% Nylon Designed for technical climbing and high-altitude mountaineering, meeting the diverse athletic demands of technical climbing, ice climbing, and high-altitude trekking. Dual ultra-warmth: self-developed APEXHEAT antibacterial and deodorizing insulation combined with HEIQ heat-reflective technology forms a superior warmth system. Patented heat-reflective insulation structure design: built for extended alpine climbing and provides core warmth, underarm sweat wicking, and back heat dissipation with breathability. Patented Standing Brim Wind Hood: enhances the hood's protection in wind, rain, and snow, improves wearing comfort, and increases athletic reliability. Professional climbing fit design, tested by KAILAS top athletes in real conditions, meeting the real-world demands of mountaineering. Patented Standing Brim Wind Hood / Enhanced wind and rain protection, reducing the impact of wind, rain, and snow One-Piece Collar Design / No collar seam at clavicle, more comfortable for layering Napoleon Zipper Chest Pocket / Secure storage that prevents items from slipping out Underarm One-Piece Cut / Full freedom of movement 3D Articulated Sleeves / 15-degree pre-bent elbow design conforms to arm movement Asymmetric Cuffs / Elastic cuffs for easy layering and glove compatibility One-Hand Quick-Adjust Hem / Prevents wind infiltration for more warmth Hem Abrasion-Resistant Inner Patch / Reduces garment friction for a more durable garment YKK Anti-Self-Opening Zipper / Stays fixed in any position without slipping Fit: Athletic