The Birkenstock Sofia in black is an ideal sandal for anyone looking for comfort. The Sofia has two adjustable straps connected to each other by another strap above the instep. The straps are made of Birko-Flor and lined with soft fleece. Characteristic of the Sofia is the lightweight PU sole. It is made of polyurethane which a material that is flexible, lightweight and oil and grease resistant. The profile on the sole gives mobility to the foot which makes it a perfect sandal for anyone that likes walking. Of course, this sandal also has the well-known anatomically shaped Birkenstock foot bed, with deep heel indentation, toe grip and a suede top layer. The Sofia black with flexible sole is available in the width ‘normal’.