You definitely need to order up in band size. Depending on how you intend to wear the bra, if you use the straps, go up a cup size (maybe 2) also. The band on this thing made me question if I was going to be able to continue breathing. As a strapless, this would actually work, even for my size, which is odd. (36G) Now, that is with the size G cup. However, with the size G cup, using this with straps, I was popping out like Jiffy Pop in a foil pan. I think I would have to go up 2 cup sizes to be See full review