USD took it back to the drawing board with the Aeon skate. Going beyond the UFS frame mounting system and completely reworking the understanding of an aggressive inline skate. The unibody concept, with the boot, soulplate and frames is formed as one, instead of 3 or more different parts held together by screws. This creates the lowest, lightest skate possible with unparalleled energy transfer in every stride. It also allows for the widest h-block split possible, making this the best flat setup ever created, keeping you safe from wheel bite. The USD Basic Dual-fit liners come with a stretchy neoprene toe panel which allows for 2 sizes to be catered with a single liner, giving perfect comfort and support in every session. The 2020 update on the Aeon Basic now comes without the 45 degree straps (less parts = less rattling!) and updated USD wheels. Features: Shell: glass-fiber reinforced plastic Liner: USD basic dual-fit Wheels: USD Aeon 61mm/90a Bearings: Wicked ABEC7 Sizing guide: EU36-38 / US5-6 (Men) / US6-7 (Women) / UK4-5 / Mondo 229-242 EU39-40 / US7-7.5 (Men) / US8-8.5 (Women) / UK6-6.5 / Mondo 248-255 EU41-42 / US8-9 (Men) / US9-10 (Women) / UK7-8 / Mondo 261-269 EU43-44 / US10-10.5 (Men) / UK9-9.5 / Mondo 275-282 EU45-46 / US11-11.5 (Men) / UK10-10.5 / Mondo 289-296