Full Grain Leather. Metal Hooks and D-Rings for Secure Lacing. Bellows Tongue Keeps Debris Out. M SelectTM FRESH Antimicrobial Agents Reduces Shoe Odor. Breathable Mesh Lining. Merrell Air Cushion in The Heel Absorbs Shock and Adds Stability. Merrell Kinetic FitTM BASE Removable Contoured Insole for Flexible Support. Compression Molded EVA Midsole for Stability and Comfort. Vibram® Megagrip®. 3 mm Lug Depth. Color: brown