This is a backpack from POC, a well-known Scandinavian brand famous for road bike helmets and other gear. Please see the product description below. Thank you for your consideration. ・Size: 49cm/25cm/12cm ・Weight: 750g ・Capacity: 13 liters ・Purchase price: 24,200 yen (tax included) (Product Description) POC, a brand with a strong reputation for sports items, especially protectors, has released a backpack equipped with its signature "protective function." You might be wondering about a protective function in a backpack, but this backpack actually has a removable cushion material in the back. This is a pad that has passed the EN1621-2 standard test. Although it's a pad, it's not hard; it has a shape-memory material that flexes according to your posture, so the fit on your back is exceptionally good. The top of the bag has a hydration hole. You can also attach extra clothing externally. It can also be used for trail running. Inside, there are small pockets for storing small items, tire tubes, tools, and other small items. The waist band uses a high-strength elastic band, so the bag won't shake even in a riding position. Both sides are equipped with pockets convenient for storing smartphones, wallets, etc., making it easy to quickly take things out, which is very important. The part that touches the back has a molded design with bumps and is made of mesh material to efficiently release heat from the back. Also, because the contact area with the back is small, the 13L capacity is not too big or too small, especially for summer rides. It can barely fit an 11-inch laptop, making it a useful capacity, especially for commuting by bicycle.