Anyone used a F-Stop ICU for camera protection while traveling?

FStop gear is legit, pretty much the industry standard. Their shipping and inventory is pretty bad though, so plan ahead.

I have the Guru with a Small-Shallow ICU.
My standard kit is:
7d2 with 70-200 f4 non-is (this is always mounted when in my bag)
17-40
11-16

You might need to size up you ICU for the bigger 70-200, maybe just call FStop and ask, they are pretty good about knowing things like that.

I just got back from a trip where I used this ICU in a Black Diamond Dawn Patrol 32 ski backpack. It worked pretty well, but bigger ICUs can definitely have a hard time in non-camera backpacks. In general, camera bags are built very blocky (to fit ICUs) while non-camera bags taper (this is why the ski and carry better). For instance, the BD bag gets skinnier towards the bottom, which makes a bit of an awkward space at the very bottom of the bag where the ICU is fatter than the inside compartment.

I have almost the same cam+lenses as you and I've used the fstop medium shallow ICU for about 5yr now and it hasn't let me down.

I was thinking of getting on of these to put in a patagonia bag I have but it would be kind of annoying to to have to take the whole ICU out any time I wanted something, especially if there's stuff on top of it. If I just needed transport I'd get one of those. But if I wanted a photo backpack that I may want to change lenses from or something, I'd probably get a dedicated bag. I'm near B&H so I guess I can just go look. F-stops look nice but are hella $$$. I've got an XT2, fuji 18-55, canon fd 300mm f/4 and 50mm f/1.8, and hoping to get a fuji 23mm f/2 WR soon.

a_pla5tic_bagI was thinking of getting on of these to put in a patagonia bag I have but it would be kind of annoying to to have to take the whole ICU out any time I wanted something, especially if there's stuff on top of it. If I just needed transport I'd get one of those. But if I wanted a photo backpack that I may want to change lenses from or something, I'd probably get a dedicated bag. I'm near B&H so I guess I can just go look. F-stops look nice but are hella $$$. I've got an XT2, fuji 18-55, canon fd 300mm f/4 and 50mm f/1.8, and hoping to get a fuji 23mm f/2 WR soon.

Some of Patagonia's ski bags have back panel access