I used it once. This is a high-strength model with stretch and moderate insulation. It uses GORE-TEX fabrics throughout. The hem width can be adjusted by opening and closing the zippers at the hem, making it compatible with both mountaineering boots and ski boots. This model is suitable for winter mountain trekking over 3,000m, ice climbing, and snow sports. Specifications 【Material】GORE-TEX Fabrics 3-layer [Surface: 70-denier Anti-Grease Ballistic® Nylon Taffeta] [Edge Guard: 1260-denier Ballistic® Nylon] 【Average Weight】635g 【Color】Gray (GY), Black (BK) 【Size】S 【Storage Size】Φ12 x 20cm 【Features】Aqua-tect® zipper / Inner spats (with tabs to secure to shoelaces, etc.) / Edge guard / Three-dimensional cut / Side ventilation (double-opening) / Bottom zipper / Buckle belt / Adjustable hem with gusset / Front zipper / Specifications that prevent suspenders from coming off easily / Loop for leash inside side pocket / Thin and lightweight 13mm wide seam tape / 1-way stretch / With stuff sack 【Pockets】4 (zippered <2 waist, 2 side>)