VGUC - grey leather upper, soft lining. Great for fall and winter. Sperry’s classic best seller, the Saltwater Duck Boot is more than an all-weather boot—it’s a true function-meets-fashion piece. Featuring a sturdy rubber “duck” shell, signature rawhide barrel laces, a side zipper for easy on and off, these boots keep your feet dry and your look complete. Water-resistant premium leather upper Waterproof rubber duck shell Signature Sperry Barrel-Tied Lacing for a secure fit Rust-proof eyelets Easy on/off zip closure Non-marking rubber outsole with Sperry’s Signature molded Wave-Siping™ technology for enhanced traction