Let's take a journey through the next few pages together. Get to the end, and I promise you'll have a better fitting bra size.
HerRoom CEO/Founder
Bra sizing can be confusing, especially with different international standards. 30DD lingerie and swimwear in US sizing is equivalent to a 30E in European brands like Chantelle, Empreinte, and Prima Donna. That’s why HerRoom created the Universal Cup Sizing™ (UCS) system, which helps you shop across different brands with ease. By searching for 30D2, you’ll find all the bras and swimwear that match your size, whether the label says DD or E.
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A 30DD bust requires the right balance of support and shaping, and HerRoom carries a variety of styles to suit different needs. T-shirt bras provide a smooth, seamless look under clothing, while balconette bras offer a slight lift for a natural, rounded shape. Full-coverage bras ensure maximum support, while plunge bras create a flattering neckline for low-cut tops. If you prefer a wireless option, soft-cup bras provide gentle shaping without underwires. With a well-fitting bra, you can achieve both comfort and confidence in your daily wardrobe.
If you’re looking for the best 30DD bras for women, then you’ve come to the right place. We offer a wide assortment of styles, brands, and sizes at HerRoom. Whether you’re looking for everyday bras, sexy lingerie, or bra-sized swimwear, we offer options designed to provide the lift and shape you need — without compromising on style. We’re simplifying the shopping process, making it easier to find consistently great-fitting lingerie and 30DD swimwear across different collections.
A 30DD is not necessarily "big," but it does indicate a fuller cup with a smaller band size. Since bra sizes are relative, 30DD bras have about the same cup volume as a 32D or 34C, just with a tighter band for more support.
If you’re looking for the best bras for women, then you’ve come to the right place. We offer a wide assortment of styles, brands, and sizes at HerRoom. Whether you’re an A or a P cup, you’re sure to find the perfect bra.
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Let's take a journey through the next few pages together. Get to the end, and I promise you'll have a better fitting bra size.
HerRoom CEO/Founder
Find your best
Bra Styles
By Tomima
You know your bra size. But, do you know your breasts? Sounds like a funny question, but certain bras styles and features work better for some breasts and not for others.
Answer the following questions, and I promise your new bras will make you look younger and thinner!
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