Unisex Onesie Size Chart
Our swimzi (onsie) is unisex and generously sized for a swimmers physique. It is designed to be worn loose with a slouchy, relaxed fit.
If you would prefer a less slouchy fit go down a size.
The sizes are based on:
Height (A) - measured head to foot
Chest (B) - measured around the fullest part
| Size | Height (cm) | Chest (cm) | Height (ft/ins) | Chest (ins) |
| 7/8 | 115 -125 | 58-62 | 3' 9" - 4' 1" | 22.8 - 24.4 |
| 9/10 | 125-135 | 62-67 | 4' 1" - 4' 5" | 24.4 - 26.3 |
| 11/12 | 135-145 | 67-74 | 4' 5" - 4' 9" | 26.3 - 29.1 |
| 13 | 145-155 | 74-81 | 4' 9" - 5' 1" | 29.1 - 31.9 |
| XS | 155-165 | 81-89 | 5' 1" - 5' 5" | 31.9 - 35.0 |
| S | 165-175 | 89-96 | 5' 5" - 5' 9" | 35.0 - 37.7 |
| M | 175-185 | 96-104 | 5' 9" - 6' 1" | 37.7 - 40.9 |
| L | 185-195 | 104-111 | 6'1" - 6' 4" | 40.9 - 43.7 |
| XL | 195+ | 111-119 | 6' 4" + | 43.7 - 46.8 |