Altra’s patented Zero Drop™ technology comes with a zero drop platform which means your foot is flat from heel to toe. The addition of their unique FootShape™ toe box means the front of your foot will have room to splay the toes out to provide proper balance. These advancements, among a wealth of other forward thinking additions like INNERFLEX™ which grid-like flex grooves in the midsole allow your foot to flex where it needs to for more speed and improved performance. They've implemented these technologies into running and trail shoes as well as some casual footwear. Run better. Run safer. Choose Altra Footwear.