Designed for extreme cold mountain expeditions, the down jacket features a high 99% down content, 231 g down fill, and 900 FP+ loft to create a stable static air insulation layer, enabling it to withstand temperatures as low as -25 °C. Its ergonomically zoned filling keeps core areas warm while enhancing joint mobility. It also features an innovative linerless anti-leak construction. Using high-density 10D fabric and precise stitching with COATS thread, the down is securely locked in, preventing leakage while significantly reducing weight, easing physical strain during high-altitude climbs.
