D4 is your Universal Cup Size (UCS)
Did you know American and European brands like Wacoal, Vanity Fair, Chantelle, Prima Donna call your cup size a G, but United Kingdom brands like Fantasie, Panache, Freya, Elomi call your cup size an F? Only at HerRoom, search 42D4 and see everything that comes in both your bra sizes.
22 Items
Find your best bra size
Fast
No measuring tape needed
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!
We are sorry we are unable to assist you further.