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 UltraSky cushioning with High Energy Return Details: Adjustability: Stretchy knit collar with stretchy gore No tie elastic laces Upper Material: Stretchy Knit Midsole Material: Lightweight EVA Outsole Material: EVA and rubber outsole Removable Insole: Yes Heel Height: .65"
