I used this bag on an 11 mile hike yesterday, temp started at 12C and ended up around 18C, total elevation gain 250metres, carrying the below

Fujifilm X-T5
70-300mm lens (fitted to the camera, whilst in the bag)
16-80mm lens
2 x SD card and one battery in the black pocket on the flap of the pack
1 x small Joby Gorillapod in the top pocket
3 small snacks (small trail mix bags etc)
1 x 500ml bottle of water
1 x hat

Pro’s

1. The bag was comfortable to wear. I didn’t have back or shoulder ache when I got home, not really felt anything when I was out.
2. It’s easy to access. Just slide it around you, and the zips and pockets are exactly where you’d want them to be to extract the camera.
3. The bag sat against me, in such a way that part of it rested against the waistband of my trousers, and the rest of the pack leant slightly away from me, creating an airgap, so no obscenely sweaty back on this trip
4. It feels a little heavy at first, but soon enough, you forget about it.
5. It sticks with you. In that you can climb a stile, gate or fence, and it didn’t slide around me
6. The thinking behind the zips is clever. they all have loops that can meet in the same place on the bag, so if you are bothered about security of your camera, you can just put a small lock through the loops

Things i’d change…

1. Add a small mesh pocket to the side you lift up to get the camera, just so I have a place to hide my lens cap whilst using the camera
2. The bottom does have padding, but it also seems quite thin. Maybe 5mm. I wouldn’t want to drop bag with the camera in it….
3. Whilst I complimented the comfort, the strap did get sweaty. There are packs out there with straps that are mostly mesh and wider to spread the load. Maybe that is a future option. Also, if the pack was to lay against my back, I wouldn’t be confident in its breathability. It’s just mesh and foam, not even an airchannel foam type system
4. Make the strap that goes under the right arm to keep it stable, adjustable in it’s placement

Conclusion

If you’re looking for an every day carry camera bag with a set up similar to mine, this is probably your best bet. You can use it for small hikes, but bear in mind, you can’t carry much more than what i stated.

Note - I can’t comment on its waterproofness