Vionic Women's Tide II Flip FlopTide II features Vio Motion Support with a fit you've come to love and expect! This iconic, best selling style now features leather trim and an updated tread pattern. Proven to effectively alleviate heel pain.* Soft woven toe post and foam lined strap ensure a comfortable fit. Vionic Technology is biomechanically designed to hug your arches and support your feet in comfort. Vionic sandals' built in orthotic is shown to be effective in helping to treat