3 D FLEX. TRANSFLUX C reinforcement at the heel provides rigid support structure to align the foot and the body. Podiaflex N material can be thermo formed to customized the insole to fit your unique foot shape using SIDAS techologies Flashfit System. This sustainable material is composed of polyester resin, EVA and wheat middlings. Wheat middlings are the coarse and fine particles of wheat from the tail of the mill or waste left from wheat manufactoring. Low rebound Ortholite foam used at metaplate and along lenght of insole for maximum comfort and absorption of road shock. Engineering in partnership with SIDAS. Size: XXS 37 37.5, XS 38 39, S 39.5 40.5, M 41 42, L 42.5 43.5, XL 44 45, XXL 45.5 46.5, XXXL 47 48.