A 42DD bra fits a 42 inch underband with a five inch difference between your underbust and the fullest part of your bust. Most of the 42DD bras here are underwired, and the band does most of the lifting, so it should feel firm on the loosest hook.
Our 42DD bras come from Elomi, Fantasie, Royce and Goddess. If the band feels loose, your sister size is 40E. If it feels tight, try 44D.
Underwired 42DD Bras
Elomi makes the most underwired styles in 42DD, including all of the plunge bras. Fantasie cuts the side support styles, and Fantasie, Triumph, Sculptresse and Goddess add full cup bras. Shop the full Elomi range.
Non Wired 42DD Bras
Royce makes most of the non wired bras in 42DD, for support from the band and cups instead of a wire. Shop the full Royce range.
Strapless and Sports Bras in 42DD
Elomi and Goddess make strapless styles in this size, and Elomi makes a 42DD sports bra.
Checking Your 42DD Fit
The band should sit level around your back and feel firm on the loosest hook. The centre of the bra should lie flat against your breastbone, and if it lifts away, try the next cup up. Use our bra size calculator or the fitting guide to check your size.
Related Sizes
All DD Cup Bras | 28DD Bras | 30DD Bras | 32DD Bras | 34DD Bras | 36DD Bras | 38DD Bras | 40DD Bras | 44DD Bras | 46DD Bras | 48DD Bras