Merrell Men's Cham 8 Stretch Tactical Work Shoes - As adaptable as the reptile it's inspired by, this leather tactical boot features protection, comfort, and ultra-lightweight construction. Waterproof nubuck and mesh upper Elastic cord and lock lacing system for quick secure fit Neoprene stretch collar for easy on and off Breathable mesh lining COMFORTBASE contoured insole cradles your foot in all day comfort Molded nylon arch shank Merrell Air Cushion in the heel absorbs shock and adds stability Lightweight EVA foam midsole for stability and comfort Vibram XS Trek Evo