With a little help from GORE-TEX's advanced waterproof technology, you'll see exactly why MOAB stands for MOTHER OF ALL BOOTS. Durable synthetic material, a super-supportive footbed and high-traction Vibram grip deliver all the comfort and support you need on the trail.This third generation features a new, more supportive insole, a softer midsole for extra cushioning, and of course, the best-in-class Vibram sole unit. The Vibram TC5+ outsole is the perfect tool for multi-sport lifestyles, with a non-marking formula that delivers an all-round balance of grip, durability and flex.GORE-TEX waterproof membrane, exceptional breathability, and waterproof performanceLeather and breathable mesh upperBellows, closed-cell foam tongue keeps moisture and debris outProtective rubber toe capBreathable mesh liningMerrell M Select FIT.ECO+ blended EVA contoured footbed with added zonal arch and heel supportMolded nylon arch shankMerrell air cushion in the heel absorbs shock and adds stabilityEVA midsole for stability and comfortVibram TC5+ sole5mm lug depthWeight: 1lb 13oz / 810g