FeaturesVentilated, lightweight medical grade plastic shell configurationAdjustable, non elastic resistant straps allow continuous calm stretching protocolsOpen cell foam liner is washable and semipermeable to eliminate excessive heat absorptionComfortable, non-irritable strap pads help protect against discomfort on boney anatomyEasy to use, convenient center release bucklesNon-slip outer soleStandard sizes (based on patient’s shoe size)