Vibram TC5+ outsole provides extra traction for multiple outdoor activities; Pig suede leather and 100% recycled breathable mesh upper; Abrasion resistant and higly protective rubber heel and toe cap; Medium support provided by Kinetic Fit ADVANCED removable contoured footbed with reinforced heel cushioning; Merrell Air Cushion absorbs shock and adds stability in the heel; 100% recycled laces and webbing; Lug Depth: 5mm