Ultra Boost Inserts: The Secret to Fuller-Looking Cleavage

July 30, 2026

Not every outfit calls for a heavily padded bra. If you're looking for a head-turning boost, BOOMBA Ultra Boost Inserts provide instant lift, fuller-looking cleavage, and enhanced volume with patented double-sided adhesive. Simply place them inside your clothing or structured outfit for a secure fit and a naturally enhanced silhouette without adding unnecessary bulk.

BOOMBA Ultra Boost Inserts are reusable for up to 40 wears with proper care and available in multiple sizes for the perfect fit. Designed to work with your favorite bras and structured outfits, they boost up to 2 cup sizes, creating fuller-looking cleavage and natural-looking lift without replacing your entire lingerie collection.

Low Cut Necklines and Plunge Tops

Designed for deep V-necks, plunge tops, and low-cut dresses, BOOMBA Ultra Boost Inserts deliver maximum lift, fuller-looking cleavage, and up to two cup sizes of enhancement. Their patented double-sided adhesive keeps the inserts securely in place while creating a natural-looking silhouette under your favorite low-cut styles.

Wrap Dresses and Ruched Styles

Wrap dresses flatter the figure by defining the waist and balancing the bust and hips. Without enough bust projection, the silhouette can appear flat. Ultra Boost Inserts create a natural-looking lift from inside the bra cup, enhancing shape while remaining invisible under soft, ruched, and draped fabrics.

Halter Self-tie Top and Strapless Styles

Strapless bras rely entirely on band tension and underwire curvature to maintain lift without shoulder straps anchoring upward force and the bra is working against gravity from a single direction. This means any insert inside a strapless style needs to stay in place without upward support from above. BOOMBA's double-sided adhesive addresses this directly: it bonds to both the surface of the insert and the interior of the cup, creating a two-point grip system that holds even without straps. Independent tests of double-sided silicone adhesives in intimate apparel consistently show that surface bonding on both sides significantly outperforms single-sided grip under lateral movement which is exactly what happens during extended wear of a strapless style.

Swimwear and Bikini Tops

Swimming, heat, and movement can affect adhesive products, making a secure bond important. BOOMBA's sweat- and water-resistant design helps keep the inserts securely in place, while the double-sided adhesive works best on clean, dry surfaces.

Fuller-looking cleavage does not have to mean a new bra or a complicated routine. BOOMBA's Ultra Boost Inserts work with what you already have to give you the shape and confidence you are after, every single day. Shop the full BOOMBA collection to find your perfect match.

How to Choose the Right Size Ultra Boost Insert

Use the BOOMBA Size Chart to find your recommended insert size based on your band size and cup size. 

💡 Tip: Before ordering, use the sizing guide on the Ultra Boost Inserts product page

How to Care for Ultra Boost Inserts and Make Them Last

Keep your skin free of lotions, oils, and creams before wearing the inserts. Hand wash only with lukewarm water and mild soap using your fingertips. Air dry away from dust and direct sunlight, then stored with the protective films in the original BOOMBA box. 

💡 Tip: If your Ultra Boost Inserts still feel less sticky after washing and drying, try cleaning with a lint-free cloth dampened with lukewarm water only. Sometimes fabric fibers embedded in the adhesive layer, not oil, are the issue, and a light wipe removes them without further washing.

Frequently Asked Questions

How do I use BOOMBA Inserts?

Preparation is key! Before using BOOMBA inserts, make sure your skin is clean and dry. Avoid applying makeup, oils, lotions, or other body products, as these can affect the adhesive’s ability to stick properly.

Start by putting on your clothing item. Then, place the inserts inside the garment without touching the skin. Finally, scoop your breasts to your desired position and stick the insert along with your top onto your breast to secure. 

How are BOOMBA inserts different?

Unlike traditional inserts, BOOMBA inserts are sticky on both sides, which means it sticks to your clothing and to your skin for extra security. Preventing nipple slips and easily staying hidden under clothing.

BOOMBA inserts require no sewing to stay in place! Just stick to your skin and to your top! They are easily interchangeable between different tops and dresses.

How many times can I use BOOMBA inserts?

BOOMBA inserts are designed to be reusable for up to 40+ wears with proper care. To extend their lifespan, gently clean the inserts after each use and reapply the protective films right away. This helps prevent dust, lint, and other particles from sticking to the adhesive surface and ensures long-lasting performance.