Full grain leather upper. Breathable mesh lining treated with M Select Fresh odor control. Inside zipper for easy on and off. M Select DRY seals out water and lets moisture escape keeping your feet cool and dry. Molded nylon arch shank for increased stability. Merrell air cushion in the heel for improved shock absorbency. EVA removable footbed provides support and odor control. M Select GRIP outsole is shock absorbent and slip resistant.