Sheep or lambskin with attached wool. Generally used as a lining in footwear to provide warmth.
About Snow Boots:
Snow Boots are boots designed to wear on snow, as they will keep your feet warm even in wet conditions. Snow Boots are made of heavy materials and are designed for people who are going to be spending a lot of time in snow, or other wet or muddy winter weather conditions. The sole of Snow Boots should be made of waterproof material, such as rubber.
