Standing for Moving Quickly in the Mountains, the third iteration of Merrell's best-selling multitool of footwear is stable enough to hike in, agile enough to run in, and durable enough for light scrambling. Version 3 features a new grippy Vibram® sole and a lace-to-toe lacing system for an improved locked-in fit. FEATURES GORE-TEX® waterproof membrane, exceptional breathability and waterproof performance Breathable mesh and TPU upper 100% recycled laces and webbing Bellows tongue keeps out debris 100% recycled breathable mesh lining Mesh footbed cover NXT treated to prevent odor 50% recycled removable EVA foam footbed Molded nylon arch shank Merrell Air Cushion in the heel absorbs shock and adds stability Rock plate for protection Super Rebound Compound provides durable shock absorption to help reduce torque and allow for a smooth transition into the midfoot Vibram® TC5+ outsole provides exceptional traction for outdoor multi-sport activities, formulated exclusively for Merrell Drop: 6mm Lug: 5mm