If you end up with back fat or rolls after putting your bra on, you may be doing it wrong. Try the scoop and swoop method instead.
The scoop and swoop is the bra-fitting technique to banish back bulges
is there any way to minimize the armpit fat from being so prominent when wearing a strapless/tube top? : r/TheGirlSurvivalGuide
How to Swoop and Scoop
Sports Bra Fitting Guide
Scoop and swoop, Bustyresources Wiki
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Scoop and swoop, Bustyresources Wiki