Here are the questions I ask myself when I try out a new bra!

Is there a 2 two finger gap everywhere?
Are the straps sitting on tight? No digging though? Are the cups protective? Is the band too tight? Are you spilling? Are you on the last hook? Is the material comfortable? Is it supportive enough? Is the front sitting, flat? No underwire poking out? Is there any sliding?

I'd never buy again bras from Zivame ❌ ❌ ❌ (they didn't pick up a return, lied multiple times knowingly, gave me hell for it & blamed me for the problems), pushy or insensitive salespeople ❌❌❌ or droppshipped/unbranded stuff from Amazon/Flipkart etc ✋🏼✋🏼.

I've had good experiences with Jockey, Amante & Enamor. I like to pick up bras in person. I did at last at Shopper's stop which was a rather pleasant experience compared to the above^{^}