Boobles! Foam Triangle Bra and Swimsuit Padding Inserts Polyurethane Foam Get BEAUTIFUL CLEAVAGE with BOOBLES from Bubbles Bodywear! Boost BRAS & SWIMSUITS with these lightweight, breathable, comfy foam pads. Hard-to-find triangle shape for triangle top bralettes, bras, swimsuits and bikini tops. Available in 2 sizes. Choose the size that matches your bra cup. Size up for a bigger boost! Approximate sizes: AB = 4.33" wide x 4.25" tall / BC = 4.75" wide x 4.5" tall Pin into bra or swimsuits for extra security while swimming.