Birkenstocks Granada Birkibuc Birko-Flor Sandal Women’s Sz EU 40 US 9-9.5 Black. These are the Birkenstock Birki’s Granada Sandals. The size appears to be EU 40 Medium/Narrow width. These are in good used condition. *from smoke free home Birkenstocks shoes sandals flats slides open toe black nature walking shoe natural granola hippie summer spring casual weekend errands comfy comfort comfortable good design wardrobe basic neutral festival boho bohemian