Montrail Men's Fluid Enduro Outdry-M 100% Manmade Materials Imported Synthetic sole Durable, waterproof and practical multisport shoe Mesh body construction with seamless overlays for fit and support Out dry waterproof breathable membrane construction Fluidfoam midsole with trail stability provided by fluidframe technology and ride heights: 20mm heel/10mm forefoot Gryptonite outsole with multi-directional lug patterns for traction in multiple directions and in a variety of conditions