BOOMBA Ultra Boost Inserts Caramel Size AA Double Sided Adhesive Bra Pads BOOMBA Ultra Boost Inserts in Caramel, Size AA, fits bra sizes: 30B, 32A, 34AA. The set is new, open box, and comes in its original BOOMBA box, with the inserts individually wrapped in protective plastic. The most padded insert on the market. The go-to for that wow factor. Instantly boost up to 2 cup sizes. Recommended for tops with structure in the chest area. Unlike a sticky bra that is supported by the adhesive, BOOMBA® inserts are supported by the clothing and cannot stay up by themselves. It is crucial to wear them in tight, structured, and fitted tops. For the perfect fit, we recommend choosing your true size. Only size down if you are in between sizes.