Casey has two adjustable straps for a snug fit. This style has a removable footbed and removable spacer. For a looser fit, remove the spacer or remove both the spacer and footbed to accommodate your custom orthotic. The footbed that comes with the shoes has an anatomically correct contour with arch support. The upper is a combination of synthetic leather and stretchable spandex. The midsole is a firm but shock-absorbent EVA foam. The rubber outsole has been designed with a wide heel to provide stability and is slip resistant and non-marking. A nylon and fiberglass composite shank together with a reinforced heel counter helps further promote stability. This shoe is an excellent choice for anyone suffering from bunions, hammertoes, or any other condition that may require a little stretch in the shoe’s forefoot.