PRO Endurance Trail brings a new level of responsiveness to serious trail runners. This pro-grade running shoe features a full Px Foam midsole that combines with an optimum stack height to provide explosive toe off, feather-soft landing and efficient stride. Providing maximum energy over varying terrains, the shoe's mid-height lugged outsole ensures great grip on moderate trails environment and maintains capability on roads and light trails. In addition, the fully engineered one-piece mesh upper works in unison with the foot to offer comfort and support with every nimble step. Boasting simplicity in design, this innovative running shoe delivers pure off-road performance. Px Foam Px Foam is an ultra-lightweight midsole material that offers an exceptionally high amount of energy return while providing shock-resistance and flexibility. A single, natural foaming agent is used in making this green innovation without adding any chemical cross-linking agents. The process is non-toxic and environmentally friendly. In addition, raw and finished materials are completely reusable. The innovative foam has an extremely low density making it up to 20% lighter than traditional EVA. The reduced weight combined with explosive rebound make Px Foam perfect for every run. Craft Regular Fit Snug in heel and mid foot with excellent lock-in capability and additional room in forefoot for superior comfort and performance.