Waterproof & Breathable GORE-TEX Membrane Durable Pig Suede Leather & Breathable Mesh Upper Debris-Resistant Bellows Tongue Protective Rubber Heel & Toe Cap Recycled Breathable Mesh Lining Contoured Footbed with Reinforced Heel Cushioning For over a decade and a half, Merrell's Moab has been hikers' top pick, becoming the world's bestselling hiking boot. Renowned for its immediate comfort, durability, and versatility, it has empowered 25 million people to explore further. The Moab 3 Mid GTX offers a GORE-TEX waterproof membrane for dry feet while allowing breathability, a more supportive insole, a softer cushioned midsole, and a top-tier Vibram outsole.