UA Sports Bra Size Guide

BAND: with an unpadded bra on, measure closely around the chest just under your arms, right above the bust. If your result is a fraction, round to the nearest whole number. (ex. 33.7" rounded to the nearest whole number, your band measurement is 34").
CUP: While wearing a non-padded bra, keep the tape parallel & measure at the fullest part of your bust. Round this measurement UP the nearest WHOLE number. Subtract BAND size from BUST size to find your CUP size. EX. 36" - 34" = 2" = B = 34B.

Size Diagram