This bag is made with balance in mind because it does not discard the burden on one side.It is also safe to wear on your back while commuting to school. Material: Synthetic leather; Color: HKR-2PKE (engine), HKR-2PKA (royal); Size: Width 15.7 x Height 19.7 x Depth 10.6 inches (40 x 50 x 27 cm); Made in China; Manufacturer Part Number: HKR2PK