Carry On Travel Backpacks are great for short trips or those who know how to travel light. With proper planning and packing even a carry on backpack can be all you need for months of travel. Carry on backpacks can be up to 23 inches tall and, when combined with a removeable day pack, can provide the same storage capacity as a larger backpack. Just take the two apart and carry them on. Some carry on backpacks don't include day packs and may not be enough for longer trips. Either way, you'll find the best brand name carry on backpacks here including High Sierra, Mountainsmith, Lowe Alpine and Caribee. Few trips really require more than a carry on size pack! So pack light and keep moving!