A 38G bra fits a 38 inch underband with a nine inch difference between your underbust and the fullest part of your bust. Most of the 38G bras here are underwired, because a wire carries the weight of a G cup on a wider back better than fabric alone.
Our 38G bras come from Fantasie, Freya, Elomi, Royce and Panache. If the band feels loose, your sister size is 36GG. If it feels tight, try 40FF.
Underwired 38G Bras
Fantasie makes most of the side support bras in this size, which bring the bust forward and keep the wire from pressing under the arm. Elomi and Freya lead on plunge styles, and Royce, Fantasie, Triumph and Sculptresse cover full cup bras for everyday wear.
38G Sports Bras
A G cup on a 38 back needs a sports bra with a firm, wide underband. Freya, Panache and Shock Absorber make 38G sports bras for running and high impact training, with Royce and Elomi adding more choice.
Non Wired and Strapless 38G Bras
For days without a wire, there are non wired bras from Freya, Royce, Panache and Elomi. Curvy Kate, Goddess and Elomi make strapless styles in 38G.
Checking Your 38G Fit
Fasten a new bra on the loosest hook so you can tighten it as the band relaxes. The wire should sit behind breast tissue at the side, not on it. If you are unsure of your size, start with our bra size calculator, then read the fitting guide.
Related Sizes
All G Cup Bras | 28G Bras | 30G Bras | 32G Bras | 34G Bras | 36G Bras | 40G Bras | 42G Bras | 44G Bras | 46G Bras | 48G Bras