Perfect for deep snow. Waterproof upper, felt inner boot for warmth, and multi-directional lug sole for steady grip. Easy on and off. Design: Durable water and wind resistant PU backed synthetic textile upper Built in gaiter with barrel lock closure system and fixed elastic instep strap INSULATION: Synthetic insulation. Removable 6 mm washable recycled felt inner boot Durability & Traction: Injection molded waterproof thermal rubber shell with multi-directional lug outsole for enhanced traction. Kids' Boots & Outdoor from the SOREL brand.