I bought this for my husband as a gift for our trip to Thailand. It is the absolute perfect size. Fits in the overhead compartment AND It can fit under the seat if necessary. This pack is also a great size when packed and on. It doesn't stick out very far, so walking in tight places is easy. The design is well thought out and the materials are high quality. It was really nice to be able to tuck the backpack straps away to make it more of a suitcase looking item. The exterior handles are well placed and strong. The outside zippered slip pocket was handy for travel documents, maps and receipts. The second outer zippered pocket has 2 2-way zippers and lots of handy pockets for organization inside. The main compartment has 2 2-way zippers and a zippered mesh pocket on the flap as well as packing straps in the main compartment for keeping stuff in place. The inside of the pack in a light gray, which makes finding things easy. A great pack for long term travel and