Redesigned for lighter weight & more efficient power transfer. Ergonomically designed & scientifically tested Body Geometry footbeds were co-developed with Andy Pruitt Director of the Boulder Center for Sports Medicine to customize fit & measurably improve performance.> Body Geometry footbeds provide longitudinal arch & metatarsal support for a custom fit> By standing on the Specialized Arch-O-Meter a rider can determine the optimum level of foot contour: + Red = minimal contours for riders that prefer minimal support & flat arches++ Blue = moderate (slightly higher longitudinal arch & metatarsal button) = for people with flat to standard arch+++ Green = significant support = for people with standard or high arches> Body Geometry shim & wedges sold separately