Double insoles - with the Propet EV (Extra Volume) insole system, customized fit and comfort is easy Features a footbed that can be removed to accommodate custom orthotics Adjustable hook and loop strap closure Features a footbed that can be removed to accommodate custom orthotics, Doble suela: con el sistema de la plantilla Propet EV (volumen extra), ajuste personalizado y comodidad es fácil