The new Aeon cuff is now higher for more support with overlapping and interlocking front wings for increased stability, with added flex cuts on the top and a height-adjustable rocker hinge spacer to customize the height to your personal preferences. This is the 'Hard' edition for increased support and control, made out of a Nylon plus glassfiber composite. The cuff fits perfectly on USD Aeon and Powerslide Swell skates.