Enjoy walking comfortably wearing these Birkenstock Men\'s Birki Air Antistatic Slip-on Mules. Manufactured using PU material these mules are highly flexible and offer maximum safety and support. These antistatic mules come with removable anatomically shaped PU footbed that is washable at up to 60C. The PU made sole with side air inlets and microfibre footbed lining make them even more comfortable to wear from day to night. Wear them casually or when you go for grocery shopping., Removable anatomically shaped PU footbed antistatic and washable at up to 60C., Material: PU (polyurethane) with side air inlets., Footbed lining: microfiber., Sole: PU (polyurethane) antistatic., Antistatic properties.