These are a well-insulated single leather climbing boot that accept step-in crampons. They are good as heavy duty hiking boots but are designed for ice climbing and mountaineering.

They are mens size 12, or about euro 46.

Please note that they are somewhat dirtier than in the photo, as I have used them since the photo was taken. They are in good, but not excellent, condition. I'm selling them because I live in Alaska and they aren't warm enough. Buyer pays shipping.