If you love the Altra Lone Peak 3.0 you will love the 3.5 with its updated fit, look and feel. The drainage holes keep your feet from getting soggy, an all-new 4-point GaiterTrap(TM) keeps dirt and rocks out, and an upgraded mesh upper offers enhanced durability. The Lone Peak 3.5 is better than ever and ready to eat up those technical climbs and descents. Run with confidence and conquer the gnarliest terrain with the fully cushioned Zero Drop(TM) Platform, FootShape(TM) Toe box, and MaxTrac(TM), TrailClaw(TM) outsole.Technical SpecsIDEAL USES: Trail Running, Hiking, Fastpacking, Trail RacingCUSHIONING: ModerateSTACK HEIGHT: 25 mmWEIGHT: 8.7 oz. / 247 gDESIGNED TO IMPROVE: Natural Foot Positioning, Toe Splay, ComfortPLATFORM Fully Cushioned Zero Drop(TM) platform and FootShape(TM) toe boxLAST: SD6-MMIDSOLE: Dual Layer EVA / A-Bound(TM)OUTSOLE: MaxTracTM Rubber with TrailClaw(TM)INSOLE: 5 mm Contour FootbedUPPER: Quick-Dry Air MeshOTHER FEATURES: Sandwiched StoneGuard(TM) Rock Protection next to the foot; Natural Ride System, 4-Point GatierTrap(TM) Technology