The Merrell Men's Outmost Mid Vent Waterproof Hiking Boots are perfect for all your outdoor adventures! They feature a breathable, moisture-blocking membrane to keep you dry and comfortable. They have a Merrell Air Cushion in the heel that absorbs shock and adds stability as well as a molded Nylon arch shank. It has an EVA midsole as well as a Merrell M Select™ FIT.ECO Blended EVA Contoured Footbed with Organic Odor Control to keep your boots fresh. The M Select™ GRIP Tunes Each Outsole with Durable Traction that Grips when and where you need it.