I am selling Montbell tent shoes. I never had a chance to use them after I bought them. They are GORE WINDSTOPPER specification. The soles are made of durable, non-slip high-strength Duragrip material. The opening has a powder skirt to prevent snow from entering, so you can go outside the tent as is. The current equivalent product seems to be 13,750 yen, so I think it's a good deal.