Size & Fit Guide

How to Measure? How to measure – Seafolly Australia

Use a soft tape measure and measure close to the body without pulling tight.

  • Underbust: measure directly under the bust (where a bra band sits).
  • Bust: measure at the fullest point of the bust.
  • Waist: measure at the narrowest point of the waist.
  • Hip: measure at the fullest point of the hips.

Tip: If you don’t have a tape measure, use a piece of string and measure it against a ruler.

Find Your Band Size (32–42)

Match your underbust measurement to the band size below.

Band Size (UK) Underbust (cm)
32 68–72
34 73–77
36 78–82
38 83–87
40 88–92
42 93–97

Between sizes? If you prefer a firmer, more sculpted fit, choose the smaller band. If you prefer comfort or have a longer torso, choose the larger band.

Find Your Cup Size (A / B / C / D /..)

Cup size is determined by the difference between your bust and underbust. Use the guide below:

Cup Size Bust − Underbust (cm) Best For
A ~10–12 Smaller bust volume
B ~12–14 Moderate bust volume
C ~14–16 Fuller bust volume
D ~16–18 More bust projection / depth
DD / E ~18–20 Full bust volume
F ~20–22 Greater projection / depth

If you are between cups, choose the larger cup for comfort.

Alpha Sizing (S / M / L / XL /..)

This style is designed without integrated cups and offers a more flexible fit across the bust. Use the chart below to select your size.

Size Recommended UK Dress Size Bust (cm) Waist (cm) Hip (cm)
S 8–10 82–88 62–68 88–94
M 10–12 88–94 68–74 94–100
L 14–16 94–102 74–82 100–108
XL 18–20 102–108 82–88 108–114
XXL 20–22 108–114 88–94 114–120
XXXL 22–24 114–120 94–100 120–126

Fit Notes

  • Bodysuits and Lingerie Sets are designed to sculpt and hold form through structure rather than compression.
  • Boning and seams provide support without restricting movement.
  • Fabrics are selected for controlled stretch and recovery.
  • If you have a longer torso, consider sizing up for comfort.

Still unsure? If you share your underbust, bust, waist, and hip measurements with us, we can recommend the best size.