For the best bump fit, please refer to the guides below for each brand in conjunction with the Style Notes listed with each product, as these take into account the stretch/fit of each piece. If you're still unsure which size to go for, please email hello@poplin.com.au, we will happily help.

 Single Size Conversion Guide

By Johnny

XS - AUS 6 (Bust 81.5 cm)

S - AUS 8 (Bust 84 cm)

M - AUS 10 (Bust 89 cm)

L - AUS 12 (Bust 94 cm)

XL - AUS 14 (99 cm)

Charlie Holiday

XS - AUS 6 (Bust 81 cm)

S - AUS 8 (Bust 86 cm)

M - AUS 10 (Bust 91 cm)

L - AUS 12 (Bust 96 cm)

XL - AUS 14 (101 cm)

Free People

Tops

XS - AUS 4/6 (Bust 83.8/86.4 cm)

S - AUS 8/10 (Bust 88.9/91.4 cm)

M - AUS 12/14 (Bust 94/96.5 cm)

L - AUS 16/18 (Bust 99.1/101.6 cm)

Dresses

XS - AUS 4/6 (Bust 81 cm)

S - AUS 8/10 (Bust 86 cm)

M - AUS 12/14 (Bust 91 cm)

L - AUS 16/18 (Bust 97/102 cm)

Girl and the Sun

XS - AUS 6 (Bust 85 cm)

S - AUS 8 (Bust 90 cm)

M - AUS 10 (Bust 95 cm)

L - AUS 12 (Bust 100 cm)

XL - AUS 14 (Bust 105 cm)

LJC Designs

XS - AUS 6

S - AUS 8

M - AUS 10 

L - AUS 12

XL - AUS 14

One Size - AUS 6 to AUS 14

MLM

XS - AUS 6 (Bust 80-83 cm)

S - AUS 8 (Bust 84-86 cm)

M - AUS 10 (Bust 87-90 cm)

L - AUS 12 (Bust 91-95 cm)

XL - AUS 14 (96-100 cm)

Moni the Label

XS - AUS 8 

S - AUS 10

M - AUS 12 

L - AUS 14 

Rue Stiic

XS - AUS 6

S - AUS 8

M - AUS 10 

L - AUS 12

Style State

XS - AUS 6 (Bust 82 cm)

S - AUS 8 (Bust 87 cm)

M - AUS 10 (Bust 93 cm)

L - AUS 12 (Bust 95 cm)

XL - AUS 14 (Bust 100 cm)

SNDYS

XS - AUS 6 (Bust 78.5 cm)

S - AUS 8 (Bust 81 cm)

M - AUS 10 (Bust 86 cm)

L - AUS 12 (Bust 91 cm)

XL - AUS 14 (96 cm)

Tigerlily

XXS - AUS 6 (Bust 80 cm)

XS - AUS 8 (Bust 85 cm)

S - AUS 10 (Bust 90 cm)

M - AUS 12 (Bust 95 cm)

L - AUS 14 (Bust 100 cm)

XL - AUS 16 (Bust 105 cm)

Winnie & Co

XS - AUS 6 (Bust 83 cm)

S - AUS 8 (Bust 85 cm)

M - AUS 10 (Bust 90 cm)

L - AUS 12 (Bust 95 cm)

XL - AUS 14 (Bust 100 cm)