I wear 34C, the bra provides some lift, but not enough. Do not bother with this product if you wear a C or larger, it's just not going to work well enough to be worth it, save your money for a different style backless bra. For anyone small enough, I read that with this type of bra it's best to order 1 cup size larger than the one you wear. I ordered a size D and the cups fit perfectly.