Merrell Moab Adventure Lace shoe is designed with Vibram outsole for traction in all weather and temperature conditions Our Merrell shoe is designed with a nylon arch shank and EVA midsole for stability and comfort. Outer Material: synthetic Sole: Rubber, Ethylene Vinyl Acetate Closure: Lace-Up Heel Type: Flat Shoe Width: Medium This shoe is made with an ECO blended EVA contoured footbed with organic odor control. Moab Adventure Lace shoe is deisgned with breathable mesh lining. Our Merrell shoe provides a protective rubber rand and toe cap. Enjoy all day comfort thanks to the incredible Moab fit.