The Merrell Men's Altalight Mid Waterproof Shoe is a lightweight backpacking boot for traction in the mountains. Bring on the adverse weather conditions and shallow creek crossings, as the M Select DRY BARRIER is ready to protect against rain, sleet, and all things water. The nylon ripstop Upper is abrasion-resistant and the Stratafuse exoskeleton provides support and additional durability. An aggressive 5mm lug depth carved out from the Quantum Grip rubber Outsole is all about the mountain terrain, giving you the ability to take on wet and dry rock situations. Features of the Merrell Men's Altalight Mid Waterproof Shoe M Select DRY BARRIER impermeable membrane seals out water and lets moisture escape Waterproof nylon ripstop Upper Stratafuse exoskeleton provides a glove-like Fit for extremely lightweight support Metal hooks and eyelets for secure lacing Bellows tongue keeps debris out 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