The Sperry Top-Sider Bluefish is worn by National Safe Boating Council Instructors on the job. * Genuine Handsewn Construction and Padded Tongue for Durable Comfort * Stain and Water Resistant Leather for Durable and Lasting Wear * 360° Lacing System� with Rust Proof Eyelets for a Secure Fit * Molded EVA Cushion Midsole for All-Day, Under-Foot Comfort * Air Mesh Upper Panels for Cool, Breathable Comfort Around the Foot * Non-Marking Rubber Outsole with Wave-Siping� for Ultimate Wet / Dry Traction