it really depends on the size and bulkiness of the items you carry. The pochette Métis can hold quite a bit but the items can’t be very bulky. I keep a mini pochette, key pouch, zcp, small tissue pack, small medicine container, and chap stick in mine and there’s still a bit of space if you keep things organized. I’m very casual too, jeans, tee etc. I have the reverse monogram version of the pm and personality find it pretty casual. I also have a neo noe on my wish list as my next bag purchase.
Good luck deciding.