I received the PhotoCross 13 yesterday, and wanted to share some quick impressions. I'm comparing it to the TurnStyle 20, as one of the two will be my go-to travel/walk around bag.
- PhotoCross has more space. I fit my maximum travel setup without distorting the bag: 100-400 II, 5D4 + 16-35 f/4, 50L, 1.4xIII TC. There's still space in the outer pocket to fit keys, wallet, cell phone, and more; the elastic pocket for water bottle/whatever is awesome, a huge plus over the TurnStyle. There's even the capability to strap things to the outer part too, such as a travel tripod, so I could carry even more, but probably won't... This load totally distorts the TurnStyle, and with the minimal padding, makes it borderline insufficient. Win for the PhotoCross.
- TurnStyle is more svelte and sleek, PhotoCross is more "frumpy". The extra waterproof material that makes up the back pocket of the PhotoCross is expandable and allows more space to store stuff, but it isn't as put together. If you are concerned about appearance, this may make a difference.
- Fit: here's where I'm undecided on the PhotoCross. In order to snug the bag up enough to where it sits right on my back, I have to tighten the cross strap to the max. This leaves a good 18 inches of dangling strap to deal with. I'm 6', 210lbs, athletic build... someone with a smaller frame may not be able to tighten this bag up enough. They probably did this so you have space to adjust for bulky outer layers, but I wish there was adjustable length on both sides of the strap so you could dial in the right fit for your body specs.
- Comfort: with the gear I loaded up, it's pretty comfortable. The broader strap distributes weight well, and the waist strap stabilizes the bag nicely.
- Waterproof cover. The TurnStyle has it's own hidden compartment, but that's not the case with the PhotoCross, so you will have to devote space somewhere to this cover. Considering the PhotoCross has DWR coating, and you don't have a penchant for standing in downpours, you could forgo this cover if space is more important.
Overall, this bag sits at the precipice of being too large for a sling bag, but small enough to be manageable. It definitely scratches that main itch I have with the TurnStyle, in that I can't take a small jacket/waterbottle or travel tripod with me when out and about. With a lighter load than what I had, it'll be more than manageable.