Loading... Please wait...

Size Chart

Generally, you should order your pre-pregnancy size (in other words, the size you wore before you were pregnant). Our sizing takes into account weight gain and a growing belly all the way to 9 months. When selecting your size, use the measurements chart below as a guide.

Pre-Pregnancy Size 4-6 8-10 12-14  16-18   20   22   24 
Mermaid Maternity® Size Small Medium Large XL XXL 2X 3X
Current Bust Measurement* (inches) 36-37.5 38-40 40.5-42.5 43-45 46-48 47-49 50-52
  Current Hip Measurement** (inches)   38-39.5 40-42 42.5-44.5 45-47 48-50 49-51 52-54
 
 
 
 
 
 
 
 
* For bust measurement, measure around the fullest part of your bust
** For hip measurement, stand with feet together and measure around the fullest part of your hips
 

For larger bust sizes: If your bra cup size is DDD or higher, you may want to go up 1 size, but we do not recommend going up 2 sizes. For example, if you normally wear a size medium in a fitted t-shirt but your bust measurement falls within the 'Large' box in our size chart, you should order a size large. However, if you wear a size medium in a fitted t-shirt but your bust measurement falls within the 'XL' box in our size chart, we recommend ordering a size large, not an XL.

If you have specific fit questions feel free to contact us. When you try on your swimwear, keep in mind that it will stretch a bit when wet. 

 

International Customers, use the international size conversion guide below to find your correct size: 

 US & CANADA      EUROPE             U.K.         AUSTRALIA       JAPAN    
4-6 34-36 6-8 8-10 7-9
8-10 38-40 10-12 12-14 11-13
12-14 42-44 14-16 16-18 15-17
16-18 46-48 18-20 20-22 19-21
20-22 50-52 22-24 24-26 23-25
24-26 54-56 26-28 28-30 27-29