I've used and love the Peak Design Everyday Backpack 30L for the past two years and absolutely love it. https://www.amazon.com/Peak-Design-Everyday-Backpack-Camera/...

Originally I was on the fence because it's an expensive purchase ($289). Honestly wish I purchased this sooner.

One of the major reasons I purchased this was for work/work travel so I could carry a camera with me. It's my entire mobile office as I've worked remotely. It's lived through ~100k airline miles, 60k driving miles, and the last 6 months living out of a van.

I typically am hard on my gear, but all the Peak Design gear holds up really well. It actually looks better with age.

From the top of a mountain shooting pictures to walking down any street in a major city. It's not out of place, which is really nice.

It's very modular and with a pouch or two, it fits everything I could ask to fit in with room for more.