BOOMBA Ultra Boost Inserts Sand Size A Double Sided Adhesive Bra Pads Open Box BOOMBA Ultra Boost Inserts in Sand, Size A Fits bra sizes 30C, 32B, 34A, 36AA Ideal for wedding dresses, formal gowns, or low-cut tops, these inserts are sweat and water-resistant. 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. For the perfect fit, we recommend choosing your true size. Only size down if you are in between sizes.