A military-style [PORTER FORCE] series with a motif of accidental differences in fabric color.The subtle color difference between the fabric used for the front pocket and the fabric used for the bag itself. By attaching it, it reproduces the use of fabric from different lots, which is rarely seen in military supplies. Contrary to its simple appearance, the bright orange color on the inside is inspired by the lining of a military jacket, and its lightness and softness are truly first-class. The gusset width of this B4-sized backpack can be adjusted according to the amount of luggage, so you won't cause trouble to other people on trains, etc. Also, even if it gets heavy, the two belts will distribute the weight. It reduces the burden on your shoulders.There is a removable pocket inside, and it can also be used as a convenient pouch with a handle.