This is an original backpack from Sakaiya, a specialty store for mountaineering and outdoor goods located in Jimbocho, Kanda, Tokyo. It has a stiff back panel and is suitable for carrying heavy loads. Also, the large outer pocket can be removed and used as a mini-rucksack/messenger bag (with strap). ●Weight: 1740g (including mini-rucksack and strap) ●Approximate dimensions of main body (measured by amateur, excluding mini-rucksack) ◯Height: 45cm ◯Width: 30cm ◯Depth: 17cm ●Approximate dimensions of mini-rucksack (measured by amateur) ◯Height: 35cm ◯Width: 25cm ◯Depth: 7cm ●Capacity (reference): 29L (calculated total below) (Capacity of main body: 45 x 30 x 17 ÷ 1000 ≈ 23L) (Mini-rucksack capacity: 35 x 25 x 7 ÷ 1000 ≈ 6L) (↑Measurements are approximate, and the method of calculating the capacity of a mountaineering backpack may not be appropriate, so these are just reference values) There are signs of use, but it seems it wasn't used much (1 or 2 times?) and I think it can be considered a beautiful item for mountaineering equipment. There are leather handles and loops on the sides of the main body, so you can carry it from the side or attach a strap to use it as a shoulder bag. It seems there was a key in the main room. I looked in the pockets of the backpack, but I couldn't find it. I will attach it if I find it. I have included a picture of a similar backpack from Sakaiya Sports at the end. For reference. If you have any questions, please feel free to ask. This is a used item stored at home by an amateur, so please refrain from purchasing if you are concerned about minor details. It will be carefully packaged and shipped anonymously. #Sakaiya #Sports #Mountaineering #Backpack #Rucksack #MiniRucksack #ShoulderBag #MultiFunction #30L #Detachable #MessengerBag #Hiking #BeautifulItem