• GORE-TEX® waterproof membrane repels moisture and enhances breathability for all activities• Mesh and TPU upper• Traditional lace closure• Bellows tongue keeps debris out• Breathable mesh lining• Merrell M Select™ FIT.ECO blended EVA contoured footbeed with organic odor control• Molded nylon arch shank• Merrell air cushion in the heel absorbs shock and adds stability• Vibram® MegaGrip outsole provides the best combination of stickiness and durability for sure traction on both wet and dry surfaces• 5 mm lug depth