Gore-Tex protects feet with breathable, waterproof protection for wherever the adventure takes you Vibram Ecostep outersole provides reliable grip across a variety of outdoor surfaces EVA foam insole with 50% recycled top sheet keeps you comfy over any terrain FloatPro Foam midsole provides a lightweight ride that lasts The Moab Speed takes the innovations of the archival Moab and updates them for the ever-changing trail. Built on the solid foundational rock plate, the Moab Speed features recycled laces, lining and footbed. The shoe is fitted with FloatPro and a new Vibram Traction Lug outsole design for added traction and stability. Vibram Outersole Merrell universally equips all their boots, shoes, trainers and sandals with a Vibram outsole. Lightweight, super grippy and longlasting, the Italian mountaineering company are called upon by Merrell due to their renowned status for designing soles with excellent traction and structured comfort. From hard-packed snow and forest floors to bare rock and loose rubble terrains, there's not a corner of the world that Vibram hasn't already conquered. Highly abrasion and water-resistant, over 70 years of outerwear knowledge and experience has gone into this design. Built with a unique lug pattern that allows the foot to flex more naturally, the specially-designed metal shanks give you greater balance and comfort when exploring uneven terrain. Essential for any adventurer looking to explore on and off the beaten path.