Tide II features the same great Orthaheel Technology and fit you've come to love and expect! This iconic, best-selling style now features leather trim and an updated tread pattern. Patent Pending Soft woven toe post and foam-lined strap ensure a comfortable fit. Orthaheel 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 heel pain (plantar fasciitis). Lightweight, flexible medium-density EVA midsole absorbs shock, reducing stress on feet, ankles and knees. Durable TPR outsole with patterned tread helps improve traction. Woven/leather uppers with padded neoprene upper liner. Recommended by Dr. Andrew Weil. Received APMA Seal of Acceptance. Available in women's whole sizes 5-12 If you are a half size, we recommend ordering the nearest size down Fits medium/wide B/C widths. For the greatest comfort, we recommend wearing your new Vionic footwear or orthotics for just a few hours for the first few days to allow your feet to adjust to the new level of orthotic comfort and support. Within one to two weeks you should find the product completely comfortable and supportive.