Size Guide
Find the size that provides comfort, support, and freedom of movement.
How to take your measurements
Measure your bust circumference
Place the tape measure around the fullest part of your bust, at the nipple level, without compressing your chest.
Measure your underbust circumference
Place the tape measure directly under your bust. Adjust it snugly against your body without pulling it too tight.
Measure your waist circumference
Measure the narrowest part of your natural waist, keeping the tape horizontal.
Measure your hip circumference
Place the tape measure around the fullest part of your hips and buttocks, parallel to the floor.
Determine your swimsuit size
Find your underbust measurement in the first row, then check the corresponding Sunmarin size.
| Underbust | 63–67 cm | 68–72 cm | 73–77 cm | 78–82 cm | 83–87 cm | 88–92 cm | 93–97 cm | 98–102 cm | 103–107 cm | 108–112 cm | 113–117 cm | 118–122 cm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunmarin size | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 |
Determine your cup size
Subtract your underbust circumference from your bust circumference. The resulting difference determines your cup size.
| Difference (Bust - Underbust) | 12–14 cm | 14–16 cm | 16–18 cm | 18–20 cm | 20–22 cm | 22–24 cm | 24–26 cm | 26–28 cm |
|---|---|---|---|---|---|---|---|---|
| Sunmarin cup | A | B | C | D | E | F | G | H |
Choosing by swimsuit type
One-piece swimsuit
Use your bust, underbust, and hip measurements. Check the cup size indicated on the model.
Bikini top
Choose based on your underbust circumference and cup size. The band should remain horizontal and stable.
Bikini bottom
Use your hip measurement primarily. The bottom should follow your curves without cutting into your hips.
Tankini
Take into account your bust, cup size, waist, and hips for a balanced fit.
Shapewear swimsuit
The fabric should firmly embrace your silhouette without hindering breathing or creating uncomfortable compression.
Fuller bust
Prioritize models with enhanced support, featuring a stable band and sufficiently wide adjustable straps.
Separates
When items are sold separately, choose the top based on your bust and the bottom based on your hips.
Beachwear
For dresses, tunics, and beach tops, use your bust, waist, and hip measurements primarily.
How to identify a good fit
The cup
The bust should be fully covered without overflowing, compressing, or leaving empty space.
The underbust band
It should remain horizontal, close to the body, and stable while you move.
The straps
They should be comfortable without slipping or leaving deep marks on your shoulders.
The swimsuit bottom
It should follow your curves without cutting into your hips, bunching up, or riding up when you move.
Fit and support can vary depending on the model. Check the product page or ask our team for advice to find the fit that suits you best.