I am also selling this on other platforms, so please be aware that I may have to cancel your order depending on the timing. I purchased this several years ago and it has been unused. For winter mountaineering boots, snow mountains. Compatible with one-touch crampons. The size is 45 and 3/1. Please refer to the size chart on the manufacturer's website. #sportiva #alpinecruiser MAMMUT 3010-00750 Magic Guide High GTXR Men Magic Guide High Gore-Tex Brand: - Magic Hight GTX Mammut Magic Guide High Gtx Mammut Magic High for winter mountaineering - Brand: MAMMUT - Color: Black/Red - Material: Suede/Synthetic - Waterproofing: GORE-TEX - Sole: Rubber sole - Features: High grip and durability Thank you for viewing.