It may look like a garden-variety flip-flop, but the Vionic with Orthaheel Technology Ryder sandal will keep you on the move and in comfort for hours on end. Podiatrist-designed to alate a number of common foot ailments, this men's slip-on sandal has a jersey-lined synthetic leather upper, nylon webbing toe post and hook-and-loop strap to personalize the fit. With textured dots to improve underfoot grip, the Dr. Andrew Weil-recommended biomechanical orthotic footbed features arch support and a deep heel cup to cradle your sole with every step; Tri-Planar Motion Control reduces pronation, restoring the foot to its natural position for greater comfort and proper alignment when walking or standing; the 1st Ray Flexor Zone™ improves big toe function. The APMA-accepted Vionic with Orthaheel Technology Ryder thong sandal has a rubber sole with a wave-patterned tread to keep footing secure. Fit tips: This style is offered in whole sizes only. If you normally wear a half size, we recommend ordering up: For example, if you are a 9.5, order a size 10.1st Ray Flexor Zone™Adjustable, foldover hook-and-loop closureAPMA Seal of AcceptanceBiomechanical orthotic with arch support and deep heel cupEVA footbed with textured padsGetting to Know Your Vionic with Orthaheel Technology Footwear or InsolesLightly padded jersey liningLightweight, waterproof constructionMedium/Wide width (Men's D-E)Medium-density EVA midsoleNylon webbing toe postRubber soleSynthetic leather upperTri-Planar Motion ControlVionic with Orthaheel Technology footwear may improve alignment and offer natural pain relief for foot pain, heel pain, knee pain, aching legs and plantar fasciitis.Wave-Patterned TreadStyle Number: 24RYDER-BLKGRYView All Vionic with Orthaheel Technology ProductsCustomer Reviews for Men's Vionic with Orthaheel Technology Ryder