Size 34 bras are a bit loose on me so i use size 32 and it fits me perfectly tight. I am going on a trip with a club so they are giving us sweat shirts so i have to send my chest size to them. It comes as 39 so i am thinking that 38 would be the best size. How come both the sizes are different?Size 34 bras are a bit loose on me so i use size 32 and it fits me perfectly tight. I am going on a trip with a club so they are giving us sweat shirts so i have to send my chest size to them. It comes as 39 so i am thinking that 38 would be the best size. How come both the sizes are different?

...you do realize the 34 refers to UNDER your breasts, right?