Full grain leather upper - Breathable mesh lining - COMFORTBASE footbed cradles your foot in comfort - COMFORTBASE midsole for increased shock absorption and cushion - Merrell air cushion in the heel absorbs shock and adds stability - Molded nylon arch shank for midfoot support and flexibility - Composite toe rated ASTM F2413-18 I/C - EH rated ASTM F2413-18 - M Select GRIP rubber outsole for traction when and where you need it - Oil and slip resistant rubber outsole; Mark II and SATRA tested - Heat resistant outsole protection for brief periods of contact that meet or exceed 500AdegF