Once your boobs have fully dropped and it sounds like urs have because ur able yo get measured and they fit in a bra, ur allowed to go underwired.
I bought two when I first got measured and Wear them for work to give me support and a good shape. On the evenings and weekends I go braless or wear nine wired / Crop top style. After 8 hours the wire starts to dig and irritate my boob. It was worse when I started wearing them and has gradually calmed down.
I was sleeping with a crop top until six months post op. My surgeon said I’m fine to go braless as I had unders ans they won’t droop.
Marks and Spencer have a good range of non wired bras that have skinny straps and really comfy material thibk it’s called comfort bra or something and I’m sure they start at a 30 back. I’m a 28 so can’t wear them. It’s good practice to stick to ur back sie though as it’ll help keep good posture and correct fit for ur boobs. Hope that helps fxxx
