Features of the Merrell Women's Bravada Waterproof Shoe M Select DRY BARRIER impermeable membrane seals out water and lets moisture escape Waterproof mesh Upper Attached tongue keeps debris out Comfort collar reduces hot spots Kinetic Fit BASE removable contoured insole for flexible support Merrell Air Cushion in the heel absorbs shock and adds stability EVA foam Midsole for stability and comfort Merrell mountain-grade Quantum Grip rubber Outsole Vegan-friendly 5mm lug depth