Whenever possible i'd rather be cruising around an event with a Roller Bag, but when navigating through crowded areas nothing is more convenient than a backpack. I've got a few more conventions to cover this year, and i'm specifically looking into a Hybrid Backpack / Roller bag.
There are of course a few small requirements.
1: Solid build as a roller, and fairly comfortable as a backpack.
2: Must hold a 15" MacBook Pro Retina Laptop Also.
3: Padded dividers for small Camera Gear.
4. Must be Airline Carry-On Compliant
So far i've narrowed it down to a few, and here's my list of Hybrid Rolling Backpacks i'm currently looking into.
Lowepro Pro Runner x450 Rolling AW Backpack - Two wheel roller with room for a Laptop. Straps to cart around a Tripod if needed. It appears to be on the smaller side, maybe not enough for my gear. For travelers this does not have many external pockets for quick access to small accessories (cell charging cables, car keys, etc).
Lowepro Pro Runner x450 Rolling AW Backpack
Tenba Shootout Rolling Backpack (Large) - This looks more like an actual backpack than a rolling case - probably more comfortable as well. Easy to get your laptop out when going through airport security without opening up the entire case. Bungee straps on the exterior to quickly hold gear as you move around, and small external pouches for access for small accessories. Not many individual pockets for sorting small items, but I can always buy small pouches.
Tenba Shootout Rolling Backpack (Large)
Think Tank Photo Airport TakeOff Rolling Camera Bag - I've seen this bag many times. Easy to get your laptop out when going through airport security without opening up the entire case. Room for a big laptop, but not super comfortable as a backpack. Not too many external pouches for small accessories. One great thing about Think Tank besides being a solid roller bag, many of the parts can be replaced if you can ever find a way to damage it.
Think Tank Photo Airport TakeOff Rolling Camera Bag
Tamrac 5797 Evolution Speed Roller Backpack - I'm really gravitating towards this one. I've seen this at a few conventions and it looks comfortable as a backpack, yet still very solid as a roller bag. Lots of room for a big laptop and camera gear. Designed with many external pockets and easy access openings for common gear. Many small pockets for keeping small items organized and sorted.
Tamrac 5797 Evolution Speed Roller Backpack
Vanguard The Heralder 51T Rolling Backpack - The only Roller Backpack on four casters (that I could find). Oh how I love to travel with roller bags that have four casters. Room for a large laptop inside or a smaller laptop on the outer pocket. Although you can mount a tripod on the side of the bag, that is not really the ideal spot when navigating through a crowd. I like how the dividers can be removed quickly turning it into a basic roller when you're not using it for camera gear.
Vanguard The Heralder 51T Rolling Backpack
If you have experience with any of these Roller/Backpacks, or suggestions with other models you'd like to share, let me know in the comment section (here).