*Slightly Dirty from Warehouse Discounted 20%* Tone while you walk in the Avia Avi-Motion toning shoe. It features lightweight construction, negative heel engineering to promote muscle activation and forefoot flex grooves for natural Dorsiflexion of the foot.Leather upper, lace-up front Arch rocker design enhances rocking motion from heel to toe in the gait cycle. Shear Cantilever System accelerates the heel areas ability to rebound to its natural state in time for the next heel strike