Gray clogs made of wool felt material, with non-slip soles for comfortable wear. - Brand: Birkenstock - Material: Wool felt - Color: Gray - Style: Clog sandals Thank you for viewing. These Birkenstock wool sandals are perfect for the coming season. No box included. The soles show very little wear. They are in good condition, but as they are used, please refrain from purchasing if you are looking for something in new condition.