ARC'TERYX × BEAMS BOY Backpack Special order MANTIS26 I used it for about two weeks after purchase, but I haven't had a chance to use it since then, so I'm selling it while it's still in good condition. There is a little dirt on the bottom. The inside is clean with no stains. Please check the photos. Arc'teryx and Beams special order Mantis 26 Crazy color It has a lot of storage and I think it's very easy to use.