Before You Choose Your Size
Here’s How to Measure Yourself
BUST
Measure around the fullest part, keeping the tape horizontal.
WAIST
Measure around the narrowest part of your natural waistline, keeping the tape horizontal.
HIPS
Measure around the widest part, keeping the tape horizontal.
Sizing Guide
CYP Swim Size Guide (With Bra Sizes)
If you’re in between sizes, we recommend sizing up.
| Size | Bust (cm) | Waist (cm) | Hip (cm) | AU Bra Size Guide |
|---|---|---|---|---|
| XS | 76–80 | 60–64 | 80–84 | 6A – 8B |
| S | 80–84 | 64–68 | 84–88 | 8B – 10C |
| M | 84–88 | 68–72 | 88–92 | 10D · 12A – 12B (some 10DD may fit, depends on preferred coverage) |
| L | 88–92 | 72–76 | 92–96 | 12C – 12D · 14B – 14C · 10DD |
| XL | 92–96 | 76–80 | 96–100 | 12DD+ · 14C – 14DD |
Choosing your ideal fit
FIT GUIDE & SUPPORT
FIT BY STYLE
Triangle & Tie Styles (Isla, Elisa, Kaia, Sofia, & Ayla)
Flexible fit thanks to ties, most people can wear two sizes depending on coverage.
Size up for more coverage.
Underwire Styles (Siena, & Maya)
More structured.
If your cup is C–DD → size M or L depending on your band size.
Bandeau Styles (Mia, & Zara)
Fabric is stretchy but strapless styles fit best when you:
– go true to size for a firm fit
– go up if between sizes
How Each Size Fits
XS: petite frames, A–small B cups
S: small–medium busts, B–C cups
M: medium busts, B–D cups
L: fuller busts, C–DD cups
XL: fuller coverage, D–DD+
Still Not Sure? We’ve Got You.
Our fabrics are designed to stretch, mould and support.
If you’re between sizes, prefer more coverage, or want a little extra room in the cup, size up.
We’re always here to help with personalised sizing.
Contact us via the form below or DM us on Instagram @cypswim and we’ll guide you.