LLSOARSS Plantar Fasciitis Flip Flop with Arch Support Lightweight, flexible medium-density EVA midsole, provide targeted and controlled cushioning,reducing stress on heel, feet and knees. Soft woven toe post and foam-lined strap ensure a comfortable fit.Durable rubber outsole for anti-slip walking geometrical design adding more safeness. built-in orthotic is shown to be effective in helping to treat pain associated with plantar fasciitis, mild to moderate pronation, metatarsal pain, heel and arch discomfort, flat feet, sore and tired feet, and other common foot conditions Purchased new, worn once