Birkenstock Sofia slipper is a comfortable slipper which is ideal for long walks or to wear at work, just like the Bilbao and the Saragossa. The slippers have a light and flexible outsole that provides extra comfort. The bands on the instep to be connected to a transverse strap, which provides strength over the entire foot. These are the perfect slippers for a day full of movement! Sofia is part of the Professional collection and resembles the Bilbao and Saragossa.