NAImportedRubber soleExternal Heel Counter wraps around the rear of the shoe and provides support. Moderately padded tongue and collar. Breathable mesh lining supplies a great in-shoe feel. 6mm textile POWER FOOTBED. DFB? (Dynamic Fascia Band) shank mimics the Windlass Effect to deliver a jolt of energy with each stride. Powerflow+ midsole delivers 10% better shock absorption and 25% better energy return than standard midsoles. Differential: 8 mm. Heel/Forefoot: 24.5 mm/16.5 mm. Tri-C rubber compound of sticYour long-distance running routine transitions from the road to the park path without skipping a beat with the lightweight design and supportive rebound of the inov-8? Parkclaw 275 Knit trail running shoe.Shoe Fit Scale: Grade 5.? inov-8? shoes are designed with Met-Cradle technology to lock down the mid-foot for a stable hold.? Graded on a scale of 1-5, Grade 1 represents the closest, most precise fit. Grade 5 has the widest fitting toe box.Lightweight, breathable knit upper with X-PROTEC overlays that provide durable protection in a lightweight skin.Lace-up closure.