The 30G bra has a bigger band than the 28G bra. The 30G bra has deeper cups than the 28G bra, but they are about the same width.
Freya Deco Underwire Molded Strapless Bra in Nude - Busted Bra Shop
Freya Womens Deco Underwire Moulded Plunge Bra, 28DD, Nude
Full Figure Plus Size Lace Comfort Wonderwire Bra Underwire #9855 Cappuccino at Women's Clothing store
A must-have plunge bra offering stylish functionality for a flawless shape, great fit and good support. Seam-free cups with a low plunging neckline
Freya Deco Moulded Plunge Bra 4234
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Deco Underwire Plunge T-Shirt Bra
Freya Women's Deco Underwire Molded Plunge Bra, Black, 28D at
Bra Review – hourglassy.com
Deco Tailored Bra
Thin and Curvy: Victoria's Secret bras don't even fit the models!