I don’t know about “for vacation”, but I recently bought 2 Saddleback Leather bags for my Fuji gear, one big and one small that are very stealth. I take the little one everywhere.
I use a couple of big Domke bags for Canon, but they scream CAMERA BAG. I wanted bags that were more street-friendly and messenger-styled.
The small one holds 1 body and 3-4 Fuji lenses. I use inserts from older, discarded bags. The larger one holds 5-6 lenses and 2 bodies with extras.
Both fit under an airplane seat, but so far I’ve only put the small one under. It holds a lot, plus an iPad, all the chargers I need, my nr headphones and anker battery pack.
Edit: I forgot, I used the larger bag under seats flying all around Colombia in January. Fit everywhere, even a twin prop from Bucaramanga to Medellin. Fits a 15” laptop, but I took an iPad and wireless WD drive with SD slot.
I usually transport the larger bag in a semi-rigid wheeled clamshell that meets the smallest carry-on restrictions. It’s got room in there for additional lenses in pouches, a laptop, a handful of Rugged drives, more or less. Works perfect for me. The straps aren’t going to cut by a guy on a motorcycle in Vietnam.
Both are on Amazon. Medium and Large waxed canvas gear bags. $350 and $439, respectively. I think your gear would fit in the smaller bag. I have the bigger Think Tank Retrospective bag and I didn’t feel it handled weight well, is too fat, and still looks like a photo bag.

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