Size guide
For tops, size for your cups first, then adjust the band for your back. Use the bust and under-bust measurements below to find your starting size. For bottoms and shorts, use your waist and hips. If you're between sizes and want more support, size down.
InCm | Cup range | AUS/UK | USA | EU | Bust | Under-bust | Waist | Hips |
|---|---|---|---|---|---|---|---|---|
| XS | AA–B | 6 | 2 | 32 | 31 | 27 | 25 | 35 |
| S | B–C | 8 | 4 | 34 | 33 | 29 | 27 | 37 |
| M | C–D | 10 | 6 | 36 | 35 | 31 | 29 | 39 |
| L | D–DD | 12 | 8 | 38 | 37 | 33 | 31 | 41 |
| XL | D–DD | 14 | 10 | 42 | 39 | 35 | 33 | 43 |
Measurements are body measurements, shown in inches. Toggle above to switch units.
How to measure
- Bust — measure around the fullest part of your bust, keeping the tape level.
- Under-bust — measure directly beneath your bust, snug but not tight.
- Cup — start with your usual cup size (AA–DD) and choose the coverage that feels right for you.
- Waist — measure around the narrowest part of your waist.
- Hips — measure around the fullest part of your hips.
Fit notes
Swimwear should feel firm out of the water, and will relax slightly once wet.
Still unsure?
Email us at info@perasport.com.au with your measurements and we'll help you find your size.