As more people opt for carry-on only, an entire class of one bag travel backpacks has developed. Aer Travel Pack 2Most one bag travel bags tend to either lean toward carrying clothing or carrying tech. Most of us don’t travel without both as the Aer Travel Pack 2‘s designers have clearly understood. There are compromises made on both sides, tech and clothing, but the Aer Travel Pack 2 will satisfy a large group of people looking for a one bag travel backpack for shorter, city trips. To help narrow your search even further, keep in mind the best one bag travel backpacks tend to be 30-40L and start in price at around $200.