I’m looking for a 20-30L camera backpack!

I currently have the Lowepro Photosport 200 AW , but it doesn’t hold all my gear + adventure gear anymore. I need something bigger.

My gear includes Canon 7D2, 3x lenses (one 70-200 tele), Mavic Air + controller, assorted adventure gear/ layers. I’d tend to want more space than less if given a choice.

I’ve looked into Lowepro’s ProTactic 350 AW and 450 AW . I really like it’s rugged and tactical design. The 450 seems a little too big since I like being able to keep my backpack between my legs on buses/ cars/ planes. Will the 350 accommodate a similar size? Should I go with a bit of extra room in the 450?

I’ve also looked into F-Stop’s 32L Lotus , and Kashmir 30L . Having already purchased the Medium ICU makes these an easier purchase. My concern is that they might be too big to travel with easily. What are people’s thoughts on the company and design of these two?

What other factors should I consider in a bag? What other bags or companies should I look at?

Anything helps! I’m trying to purchase NOW during these cyber Monday sales so anything helps!!

https://www.amazon.com/gp/aw/d/B00ND21KS8/ref=psdcmw_3345931_t1_B00ND21JW0

I have the pro tactic 450 ii but this is the first version that will work just as well for 100 less. I’ve used it for travel to carry a 15” laptop and charger and 2 camera bodies with 3 lenses, edelkrone slider and batteries with a little extra room near the top. The bag is also slightly rigid so everything inside is semi-protected and it has three separate openings to the main compartment from the left, right and top of the backpack for quick and easy access.

If you only need to carry one lens and one camera you can save even more money and get the lowepro 350.