Bag dimensions: approx. 47 x 36 x 12 cm. Laptop compartment dimensions: approx. 44 x 30 cm. Fits laptops up to 17.3 inchesThree wearing styles. You can use it as a backpack. The shoulder straps can also be hidden when used, a briefcase or shoulder bagFour external pockets, to conveniently organise the items you want to carry such as pens, power bank, smartphone, pencil case, power supply and charging cable, etc.Spacious laptop compartment and accessory compartment. The laptop compartments special design featuring a flexible strap provides greater protection for your laptop. Store 3 days worth of clothes for travel. Spacious enough for your needsLightweight design is easy to carry. The top grab handle offers a fast grab-and-go style. Also offers an ergonomic design