Nortiv 8 - Brandclub - NORTIV 8 Mens Winter Boots Insulated 。*Fabric type: 100% Leather *Waterproof material: Men\'s snow boots features waterproof construction for waterproof & windproof, and synthetic toe caps for anti-collision. *3 warming system: (1) Removable, warm cushion faux fur insole offers all-day support & comfort. (2) 200g high quality 3M Thinsulate keeps your feet warm and dry even when the temperature is -25F. (3) An insulated warm comfy lining provides better protection in bad weather. *Durable & slip resistant: The sick rubber outsole is more stable, slip & abrasion resistant, and flexible in response to various outdoor terrains. *Perfect for outdoor & indoor: Designed for both daily life in winter and outdoor sports like skiing, mountaineering，cycling, shoveling, hiking, outdoor party, and so on.