It is reinforced with a sock liner that helps achieve the perfect fit by allowing the inside of the shoes to mold to the shape of your feet. (geekwrapped.com)
This unit has an adjustable telescoping wheel that allows you to achieve a perfect fit for your driving comfort. (shoppok.com)
Includes straps and 1 inch zip in center panel to help achieve the perfect fit. (dayonebaby.com)