Combining a 3D dual-density Pebax® footplate, midsole rocker geometry and SurfaceCTRL™ grip, our VECTIV™ technology is designed to maximise energy on the trail. And in the Infinites, this translates as the perfect balance of responsiveness and support in ultra-distance trail running shoes. The soft-ground design delivers high-level traction on extremely technical terrain. The tongue wings reduce slippage while enhancing the step-in comfort and fit. And our updated D-width last accommodates a broad set of consumer foot shapes. Compared to the original, our Infinite II Trail Running Shoes have a 10 mm greater toe spring, 1 mm more cushion, and 1 mm greater lug depth for better traction on rocky trails. All this means you'll be fully supported while the rockered midsoles propel you into your next gait cycle.