ALTRA MEN'S PROVISION 5 Inside the Provision 5 is a fresh, new approach to guided, natural foot movement, with features you’ll recognize as soon as you slip it on. Like the contoured surface of the insole, designed to immediately engage with the nerves of your feet. The refined InnovArch offers a tailored fit and encourages a natural step cycle, and the GuideRail brings extra medial support, but only when it’s needed. Support steps forward with the Provision 5. FEATURES Weight: 11.2 oz / 318 gInsole: 6mm Contour FootbedMidsole: Ultralight EVA Top Layer and InnerFlexOutsole: Rubber FootPodCushion: ModerateStack Height: 27 mmUpper: Engineered Mesh Our signature FootShape comfort gives your feet more space to sit naturally and is designed to address biological differences in men's and women's feet. Our Balanced Cushioning platform positions your heel and forefoot at an equal distance from the ground, encouraging better alignment, better form, and a low impact landing. These grid-like grooves in the midsole are designed to provide flexibility and movement. This outsole technology actually maps the bones and tendons of your foot to encourage natural movement underfoot. The GuideRail acts like a supportive highway guide rail that encourages natural foot placement by provides guidance, but only when it’s needed. Our innovative arch support feature offers a customized and secure fit while encouraging a natural foot placement in each step.