Preowned in like new condition.

The Birkenstock Callan is designed with a unique convertible heel that allows for two distinct ways of wearing the shoe.

Slip-On Shoe: With the soft suede heel piece up, it functions as a secure, closed-back loafer.

Clog: The heel is specifically engineered to be collapsible, allowing you to step on it and wear the shoe as a backless clog or mule.