SAVE THE SHEEP, the new line in Techno Soft Sheepskin! The lining is synthetic fleece made without any animal derivatives. The Techno Soft Sheepskin offers numerous advantages: Can be washed easily and dries quickly Trapped sand comes out easily out of the loose, soft wide knit Is more comfortable and a cozier fit than natural lambskin Will not mat or get stiff The STS Safety Bell Boots feature highly durable tear resistant Bi-TECH Synthetic Shell which is waterproof with easy to clean Techno Soft Sheepskin cuff and neoprene lining. Outer Shell: Bi-TECH Syntheric Cuff Lining: Techno Soft Sheepskin Core: (R) Lined Neoprene Closure: Double Velcro Made in Italy.