These are a great pair of Sorel Mad Boot Slip. These are very warm and waterproof. These are great snow boots for snowmobiling and hiking. These are leather with wool shafts. Sorel's cold weather footwear is ideal for those participating in active winter sports like snowmobiling or sledding, or for activities where maximum protection is required -- like all-season hunting or fishing, or simply going to work. These are Men size 7/Women’s 8.5