38O Bras
What is a 38O in other brands?
100 bras tracked in 38O · 2 brands · See all O cup
Your 38O across brands
A 38O isn’t the same in every brand. Here’s how a standard US 38O translates across the brands we track — and how each one runs.
| Brand | How it runs | Your 38O → |
|---|---|---|
| ThirdLove | cups run generous | 38O |
| Wacoal | true to size | 38O |
| Panache | true to size | 38K |
| Bravissimo | true to size | 38K |
Editorial buying guide
Read →Read the 38O buying guide
Top picks, sister sizes, and how to spot a good 38O fit.
Sister sizes
Elomi
Matilda Plunge Bra: Black
$75.00
Elomi
Brianna Plunge Bra: Heather
$75.00
Elomi
Brianna Plunge Bra: Black
$75.00
Elomi
Energise Sports Bra: Navy Geo
$75.00
Elomi
Energise Sports Bra: White
$75.00
Elomi
Energise Sports Bra: Nude
$75.00
Elomi
Energise Sports Bra: Navy
$75.00
Elomi
Energise Sports Bra: Black
$75.00
Elomi
Priya Plunge Bra: Vanilla
$75.00
Elomi
Priya Plunge Bra: Black
$75.00
Elomi
Molly Nursing Bra: Black
$75.00
Elomi
Aerith Plunge Bra: Rose
$75.00
Elomi
Zarla Stretch Banded Bra: Rose Bud
$75.00
Elomi
Zarla Stretch Banded Bra: Cafe Au Lait
$75.00
Panache
Serene Full Cup Bra - Vintage
$75.00
Panache
Celeste Balcony Bra - Pistachio
$76.00
Panache
Cora Balcony Bra - Soft Pink
$76.00
Panache
Envy Full Cup Bra - Ivory
$78.00
Panache
Envy Full Cup Bra - Navy
$78.00
Panache
Envy Full Cup Bra - Black
$78.00
Panache
Envy Full Cup Bra - Fuchsia Pink
$78.00
Panache
Envy Full Cup Bra - Honey
$78.00
Panache
Bliss Full Cup Bra - Hazel
$80.00
Panache
Bliss Full Cup Bra - Noir
$80.00
Panache
Bliss Full Cup Bra - Rose Pink
$80.00
Panache
Amara Full Cup Bra - Honey
$82.00
Panache
Amara Full Cup Bra - Black
$82.00
Panache
Entice Full Cup Bra - Red
$84.00
Panache
Muse Plunge Bra - Cameo Rose
$86.00
Panache
Muse Plunge Bra - Black
$86.00
Panache
Sophia Full Cup Bra - Teal Blue
$86.00
Panache
Sophia Full Cup Bra - Sienna Rose
$86.00
Panache
Sophia Full Cup Bra - Black
$86.00
Panache
Estel Full Cup Bra - Honey
$89.00
Panache
Estel Full Cup Bra - Noir
$89.00
Panache
Estel Full Cup Bra - Navy
$89.00
Panache
Iris Balcony Tankini Top - Red Gingham
$120.00
Panache
Iris Balcony Tankini Top - Black Gingham
$120.00
Panache
Paloma Balcony Swimsuit - Red Gingham
$135.00
Panache
Paloma Balcony Swimsuit - Black Gingham
$135.00