Travelpro Maxlite 4 22" Expandable Rollaboard
As a flight attendant I travel a lot. This is the bag I use for work and love it. There's a lot of space inside and two outer pockets, for quick to grab items, such as an coat. I've used this too for personal travel both domestically and internationally, and it fits all international plane overhead bins. You can purchase yours here at eBags, my favorite website for all my luggage and luggage accessories needs.
CARRY ON (BACKPACK)
eBags TLS Mother Lode Weekender Convertible
If I'm going on trip to developing countries, such as Southeast Asia, or there will be a lot of bus and train travel, I use the eBags TLS Mother Lode Weekender Convertible. The backpack itself is light, has a lot of different compartments, and has amazing travel features depending on how you travel. For example, there's a shelf inside the main compartment of the backpack that can be used, or not, depending on how you want to pack. The backpack straps can also be put away and a long strap can be used to allow one to carry it like a messenger bag.
Purchase yours here at eBags.