Also model.
I normally carry a backpack because I like having some extra inventory slots for things like my wireless headphone case, pen, notepad, and occasionally a portable charger but I have been wearing a pair to work and quickly realised how capable they are for a majority of what I do.
Ideally I'd like something relatively durable maybe with internal pockets or organiser loops to hook a pen to.
I feel like I recall Rotcho and 5.11 selling cargo pants but I don't know if they are as good as some of their other products.
For work, I go with Carhartt because they have some nice triple-stitched pants that are pretty durable and last me a couple of months. For just being out and about, I like the Fast-Tac pants from 5.11 because they are super lightweight with gusseted cargo pockets and ripstop fabric. It also has a dedicated cell phone pocket in the leg, which means I don't wear the shape of my phone into my back pocket like I do with every other kind of pants.