Rhythm walking shoe. This women"s walker has a lightweight, breathable polyester mesh upper with a six-eye lace closure for a snug fit. Backed up by a dual-density EVA midsole, the removable, antimicrobial, biomechanical orthotic footbeddesigned by a podiatristlends cradling support to every step, thanks to its pronounced arch and deep heel cup. Tri-Planar Motion Control reduces pronation, restoring the foot to its natural position for greater comfort and proper alignment, even when you pick up the pace; the 1st RayTM Flexor Zone is engineered to enhance big-toe function. Accepted by the APMA and recommended by Dr. Andrew Weil, the Vionic with Orthaheel Technology Rhythm sneaker has a durable rubber outsole with flex grooves for optimum grip and ground contact over a wide range of surfaces. Fit tip: This shoe runs short. We recommend ordering a half-size up from your normal size (if you normally wear an 8, order an 8.5).