Dimensions: 40 x 25 x 20 cm. Description: Carry-on backpack for air travel. Spacious main compartment with a zipper closure and suitcase-style opening, with interior straps to secure clothing. Additional zip-open front compartment with a laptop divider. Two front zippered pockets. One side features a bottle pocket. Padded back. Padded, length-adjustable shoulder straps. A strap on the back allows the backpack to be attached to a trolley. Compression straps. Material: Polyester