Travel Pro suck! I used to go through one every eighteen months. The wheels squeak. The handle mechanism is so complicated it breaks after six months.
Go look for a Purdy Neat bag. They are designed and built by an ex pilot. Metal or hard plastic frames. Lotts of storage space. And they last! I've had mine for over two years now and it's barely run in.
Most USA crews now use Purdy Neat.
Belive me, DONT get a Travel Pro. You'll be sorry.
Good luck.