Vionic Wave Unisex Orthotic Sandals. The Vionic Mens Wave features Vionics Orthaheel Supportive Technology, giving you allday comfort and support. The Wave is a unique flip flop sandal with soft, padded jerseylined uppers and nylon webbing toe post for maximum comfort. Fast, and Return . Podiatristdesigned, biomechanical orthotic footbed with deep heel cup helps support and realign the feet back to their natural position. Lightweight, flexible EVA midsole absorbs shock to reduce pressure on the feet, ankles and knees.