FEATURES of the Altra Men's Provision 2.0 Shoe FootShape: Allows the toes to relax and spread out naturally and the big toe to remain in a straight position for more stability and a powerful toe-off to maximize running performance Stabilipod: Three stability-enhancing zones act as a tripod throughout your run to help prevent excessive foot collapse or pronation Varus stability: This built-in full-length wedge slopes down from the medial to lateral sides of the foot to provide extra support for those who need it InnerFlex: Grid-like flex grooves in the midsole allow your foot to flex where it needs to for more speed and better performance FootShape: Allows your toes to relax and spread out naturally and the big toe to remain in a straight position for more speed and stability Zero Drop: Places your heel and forefoot the same distance from the ground to encourage proper, low-impact from throughout your trail run Abound: Energy-return compound sits directly under the foot to reduce ground impact and add a spring to each step Foot pod Technology: Unique outsole and midsole pattern maps the bones and tendons of your foot to let it flex where it naturally wants to Ideal Uses: Road Running, Walking, Light Trail Running, Cross Training Designed To Improve: Running Form, Toe Splay, Excessive Pronation, Fallen Arches Other Features: NRS Natural Ride System