BIRKENSTOCK Madrid Birko-Flor Single Strap Adjustable Dark Grey Sandals 40 / US9 Condition: like new condition Size: 40/ US9 Features: adjustable straps with metal buckles, Contoured cork footbed, Pronounced arch support, Deep heel cup, Roomy toe box, Durable lightweight EVA outsole Keywords: Birkenstock, Arizona, Sandals, Slides, charcoal, Comfort, Cork, Adjustable, Strap, Footwear, OpenToe, Casual, Summer, ArchSupport, Classic