Men's Birkenstock Arizona Indigo Blue buck leather slides, new in box. These are size 12/45. Note that Birkenstocks fit a bit large in my opinion. I wear a size 12 running shoe and wear a size 44/11 Birkenstock in order for my foot to fill the footbed. If you do similar, then these are probably more of a size 12.5-13 for you. These are new, no issues, and a nice bright blue color.