GORE-TEX TechnologiesWith durable synthetic leather, a supportive footbed, and Vibram traction, all in a versatile package, you won\'t doubt why MOAB stands for MOTHER OF ALL BOOTS These performance outdoor hiking boots feature GORE-TEX waterproof membrane to keep you dry whether you\'re in the mountains or out on a country trail. These dynamic boots have incredible traction to keep you stable and excellent breathability. • GORE-TEX waterproof membrane, exceptional breathability and waterproof performance  • Synthetic leather and mesh upper  • Bellows, closed-cell foam tongue keeps moisture and debris out  • Protective rubber toe cap  • Breathable mesh lining  • Merrell M Select FIT.ECO+ blended EVA contoured footbed with added zonal arch and heel support  • Molded nylon arch shank  • Merrell air cushion in the heel absorbs shock and adds stability  • EVA midsole for stability and comfort  • Vibram TC5+ sole  • 5mm lug depth  • Weight: 1lb 13oz / 810G