Sorel Kid's Tivoli II Shimmer Waterproof Winter Boot - Youth / Infant Synthetic/PU Leather Waterproof synthetic glitter upper. Seam-sealed waterproof construction. Bungee cord with barrel lock closure for easy fit. Faux-fur lining keeps feet warm. 100g insulation for excellent protection against the cold. Removable EVA footbed ensures boots stay fresh and comfortable. Durable, treaded rubber outsole.