IKEA - UPPTCKA Backpack on wheels, dark gray Width: 13  " Depth: 12  " Height: 22  " Max. load: 44 lb 1 oz Volume: 11 gallon Width: 35 cm Depth: 32 cm Height: 58 cm Max. load: 20 kg Volume: 40 l EVA foam, 100 % polyester. Fits laptops max. 15". Some good advice before traveling: check with the airline if your bag is accepted as a carry-on. You can easily convert this backpack into two separate backpacks, 1 large and 1 small, by just unzipping the zipper. - The large backpack has wheels as well as a telescopic handle, so you can roll it like an ordinary carry-on bag if you dont want to carry it. - The backpack has a padded back shield and straps for extra support for your back and shoulders. You can also carry the backpack in your hand, horizontally or vertically, by the handles on the top and side. - The small backpack has a separate compartment for your laptop, several small pockets for your wallet, phone and sunglasses, as well as a snap-hook that makes your keys easy to find. - If you lower the flap on the backpack you protect your back from dirt from the wheels. - With the pull-out support the backpack stands steady, even when fully packed. - Protect the contents of your backpack by putting a padlock on the zipper.