Aetrex New black sandal size 39 (us 8.5). Never worn. • 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 footbed provides cushioning & comfort • Details: • Adjustability: Hook & loop closures • Upper Material: Genuine leather • Midsole Material: Memory foam and ultra-light cork • Footbed Lining Material: Soft microfiber treated with antimicrobial technology to help fight every day odors • Outsole Material: Blown rubber for lightweight durability • Removable Insole: None • Heel Height: 1.1" • Met bar pod to help relieve ball-of-foot discomfort • Padded collar for extra cushioning