Shock Absorber Response: I would suggest sizing up a cup to HH. This bra style is very scooped in the front and sides so there is not as much coverage. But the support is there!
HerRoom Response: Try using our Universal Cup Size. This helpful chart will help guide you to the right fit. Charlene from Kawkawlin
Vendor Response: We are sorry to hear you were unhappy with our bra. Perhaps the shape of the bra is not right for you. I would guess that the size may not be accurate since you said it rubs behind your arm. Though without seeing it on this is difficult to determine. May we suggest that you give our Plunge Sports Bra B4395 a try! The racerback cut allows for freedom of arm movement and minimal chafing. Jenn from Chicago, IL USA