Portia Fringe Slingback ThongThe fun & flirty Portia is a sling back thong sandal with subtle metallic fringe detailing. With Aetrex Signature Arch Support and memory foam, the Portia will have you feeling extra comfortable all day and night long! Details The Aetrex Orthotic System is Built In to every pair: Arch support helps to stabilize and align feet Arch support helps to relieve common foot pain & plantar fasciitis The memory foam foot bed provides cushioning & comfort