Features Updated with plusher tongues, integrated comfort collars and engineered mesh uppers for comfort and breathability Molded TPU overlays for added protection and durability GaiterTrap™ hook-and-loop tabs allow for easy strapless gaiter attachment without fasteners, bungees or bindings Unique Altra EGO™ MAX midsole foam is designed for a little extra bounce and a plush feel Spread out with Altra signature FootShape™ Fit—Altra's roomiest toe box with plenty of room to help your toes move more freely, and space through the midfoot Vibram® Megagrip is a high-performance sticky rubber that offers grip on both wet and dry surfaces, rugged longevity and optimal ground adaptability