These are the 6B+GV winter mountaineering boots from the Italian manufacturer Asolo. The size is men's 7 1/2 (Japanese size 26.5cm). Purchased 3 years ago and used in the snowy mountains about 3 times. However, I don't go to the snowy mountains very often, so I am selling them. The following is a reprint of the product description. Also, photos from the montbell official page are attached. This is a lightweight alpine model with insulation, suitable for a wide range of activities from winter mountaineering to alpine climbing. Asolo's unique innovative technology provides smooth footwork. Advanced materials provide both rigidity, lightness, and heat retention. These boots are perfect for all situations in snowy mountain climbing. The upper uses Schoeller Keprotec, which boasts high durability, and the design takes advantage of the lightness unique to synthetic boots. Efforts have been made to ensure comfort, such as a flexible ankle design that does not hinder bending. Gore-Tex Insulated Comfort is used to maximize the breathability of Gore-Tex fabric. Compatible with both one-touch and semi-one-touch crampons. Type: Mountaineering/Climbing Equipment Type: Outdoor Shoes Type: Hiking Boots/Trekking Shoes Size: 26.5cm Sole: Stiff Features: Waterproof Shoe Length: High Cut Gender: Men