Dimensions: 40 x 25 x 20 cm. Description: Carry-on backpack for air travel. Spacious main compartment with a zip closure that opens like a suitcase, with interior securing straps for clothing. Additional opening front pocket with a laptop compartment. Two zippered pockets on the front. 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