The NORTHWAVE EXTREME GT 4 road shoe with exclusive Anatomical Arch Support® made of TPU, allows the shoe to perfectly shape on the bow arch, making it the ideal sole for any type of foot.Morph Carbon 12 AAS sole with full-carbon insert in the pedal area with a stiffness index of 12.0.NW Speedplay adapter compatible for the lowest stack height between foot and pedalMade with Xframe® patented construction and ultralight next generation materials that are only 0.5 mm thick, the upper transfers every watt of power and provides the snuggest, even fit with no pressure pointsSLW2 dial, the only one with step-by-step and full release in a single buttonIntegrated heel system containing directional fibre prevents any slippingPerformance Regular footbed provides greater support--