Milano Soft Footbed Birkenstock Milano Soft Footbed If you have sensitive feet and are on the go a lot, this style's for you. An extra layer of foam under the suede liner provides instant comfort and cushion and the heel strap keeps you secure. Sicily Birkis Sicily This non-leather style is a great style for traveling. It has a secure heel strap, three adjustable buckles, and an anatomic cork footbed that provides great arch support for all day comfort. Easy care uppers.