The Altra Olympus 6 shoes are designed to tackle all types of terrains, with an optimized design for trail running. This model is responsible for ensuring an optimal level of comfort and protection, with the Original FootShape Fit, which provides your feet with the space they need to step in a completely natural way. These shoes feature the Vibram Megagrip sole that offers unparalleled grip on both dry and wet surfaces.Features:Weight: 345 g / 12.2 ozSole: Vibram MegagripCushioning: HighSole Thickness: 33 mmUpper: Technical and resistant meshAltra's Original FootShape Fit with toe box and midfoot space for a familiar Altra feelTechnologies:Vibram MegagripIt is a high-performance extra sticky rubber. It provides grip and traction on wet or dry surfaces and is the industry leader in durable rubber for outdoor products.