Size Guide

SIZE GUIDE (TOP)

It’s important to measure your underbust correctly. Measure around your body right under your bust where the bra band sits. Ensure the tape is straight all the way around, exhale and pull firmly.

To achieve the best results with our swimwear, we recommend a snug fit (so size down if you're in between sizes). This ensures maximum support and a flattering push-up effect. The material will also stretch over time.  

Our Size

XXS

XS

S

M

L

Underbust (cm)

65-69       

70-74

75-79

80-84

85-89

Underbust (inch)

25.5-27                  

27.5-29

29.5-31

31.5-33

33.5-35

AU

8AA 8A 8B

10AA 10A 10B

12AA 12A 12B

14AA 14A 14B

16AA 16A 16B

US/UK

30AA 30A 30B

 

32AA 32A 32B

34AA 34A 34B

36AA 36A 36B

38AA 38A 38B

 

SIZE GUIDE (BOTTOM)

Our Size

XS

S

M

L

AUS/UK

6

8

10

12

US

2

4

6

8

EU

34

36

38

40

 

Need help figuring out your size? Drop us an email at contact@flatbabyswimwear.com

Please include the following details:

  • Product/s you wish to buy
  • Underbust, cup size, hips + waist measurements
  • Usual clothing size for tops and/or bottoms
  • Photo of yourself (if you want)