Climb the ups and fly the downs in a shoe built to deliver confidence, durability, comfort, and grip with tech made for technical terrain. The Olympus 275 HiLo has an updated Altra EGO™ MAX midsole foam that’s 15% lighter and 10% softer than the previous version for a plush underfoot feel in every step. With a Vibram® Megagrip outsole with TractionLug™, you’ve got fierce grip with adaptative traction and stability on wet or dry terrain. Just like the beloved Olympus 275, it’s designed with a MATRYX® one-piece woven upper, made for high performance and durability with a built-in scree sleeve for protection from debris. It’s got Altra's roomiest toe box to help your toes move more freely with space through the midfoot, and zero drop for natural movement. Whether you’re heading out for an all-day training run or toeing the starting line of an ultra-trail race, you’ve got the shoe that can send it all day (and all night).