This is an Arc'teryx Arro 22 backpack. This is a limited edition blue color, and I think it's rare because it's no longer available. ⚫︎Product Name ARC'TERYX ARCTERYX Arc'teryx ARRO 22 Arro 22 BACKPACK Backpack, Rucksack Waterproof, Water-repellent, Water-stop Rare color of the discontinued model (Black/Rigel). ⚫︎Color Black / Rigel Black Black x Blue Blue ⚫︎Condition The inside is deteriorated, but the outside doesn't have much noticeable dirt, so I think it's okay. ⚫︎Size Capacity 22L Height 52cm Width 33cm Depth 20cm Shoulder length 50-86cm *Please note that there may be some errors due to amateur measurements. Please understand that this is a used item before purchasing.