I had a browse of the Kathmandu website after looking at a deal posted about the Litehaul 38L. I found this travel bag - a backpack and cargo bag hybrid for $90 with an RRP of 199. The normal price of the black and purple colours seems to be about 120, however the silver colour has been sitting on clearance at $90 for a while now. Might be worth consideration if you were interested in the Litehaul as well. Some differences that I've found between the two backpacks are the weight (800g Shuttle v 1400g Litehaul - 600g difference, quite a bit if you're only using carry on), the amount of padding on the straps (the Litehaul has a lot more although the Shuttle looks very comfortable as well), and how the bag opens (the zipper for the main compartment is at the back for the Shuttle so just about impossible to open when the Shuttle is been worn, also both open up like a suitcase.) Link to the Kathmandu Litehaul 38L post.
I went with the Litehaul as it seems to be more compatible with my needs - I'm hoping the extra padding means that when I use it on hikes etc. (which is something I like to do when I travel) it'll be more comfortable than a regular strap. If you don't need or find much use with a more padded strap, than the Shuttle might be worth a thought as it's cheaper and less bulky, and from the reviews on Kathmandu, is also very durable, and comfortable. Also the zipper on the back looks like a great deterrent for anyone trying to open your bag while you walk. A cashback of 7% is available from Cashrewards.
Description from the site:
The lightweight, grab-and-go 40L Shuttle Cargo is the ideal travel bag, a versatile hybrid of a cargo bag and backpack, with a three-way harness for easy transport: carry it as a duffle bag, shoulder bag or backpack. It quickly transitions from carry-on to adventure-ready, large enough to fit your gear without weighing you down.
Features & Specs
Versatile hybrid of a backpack & cargo bag
Three-way harness for easy transport
Can be carried as a duffle bag, shoulder bag or backpack
Dual compartments
Lockable zipper
Side pocket
Internal mesh pocket
Fabric
Main Nylon 840D JR Ballistic 2xPU
Trim Nylon 840D JR Ballistic 2xPU
Lining Polyester 135D 2xPU
Weight 800g
Dimensions
60cm H x 32cm W x 24cm D
I would not recommend using this as a hiking bag unless you only need to carry your water and lunch as the bag doesn't support the weight on your lower back, instead it is supported by your shoulders.