These are Montbell over-socks made with GORE-TEX, a waterproof and breathable material. They are the type you wear over your regular socks. Montbell has discontinued this GORE-TEX product, so this is a great opportunity for those who want to use GORE-TEX products for mountaineering, trekking, or trail running. ■ Condition Purchased new in 2023 and used twice for trail running, but I'm selling them because I don't have much use for them. I washed them before listing, so there is no particular odor, but there is some overall sand soiling. Please make your judgment based on the photos and understand that no claims or returns are accepted. ※ Photos 2-5 are of the actual product. The listed size is M. I have a foot size of about 25-25.5cm, and the fit is slightly roomy when combined with thin socks. ■ Shipping Mercari Rakuraku Bin (domestic shipping), price includes shipping. ■ Other Please ask if you have any questions. ※ I may be slow to respond on weekdays due to work. Please check my profile for information on price reductions, etc. Thank you for looking. Thank you for your consideration.