Our Authentic Original is more than just a classic design - it's become an icon of style. Featuring full-grain leather, handsewn moccasin construction and our signature Sperry razor-cut Wave-Siping technology for ultimate wet/dry traction. Boat Shoe 360 Laces Razor Cut Siping Non-Marking. Upper: 95% COW Grain Leather, 5% Copper; Lining: 90% Unlined, 10% Polyurethane; Sole: Rubber. Care Instructions: Clean and Protect Upper using Leather Care Products. Heel Height: 1.0 cm