Red, Orange, Navy and Gray Men's Flip Flops from Abercrombie. I cannot find the size on any of them, and you can see that they're not all perfectly identical in length, but they're flip flops! My guess is that some are XXL from Abercrombie Kids (which apparently aren't sold now so I can't cross-reference the exact size, but probably was 9-10), and some are L (9.5-10.5) from A&F. My husband wears a 10 and they all feel fine to him, they've just lived in our hall closet and been put on to go outside when needed. I think they will comfortably fit everyone in the 9-10 range of men's shoe size. Who can have enough, anyway?