The following sizes come with the swim hat size listed below.
| Onesie Size | 0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| Ages | 3–6 mo | 6–12 mo | 1–2 yrs | 2.5–4 yrs | 4–6 yrs |
| Centre Front Length (cm) | 31 | 33 | 38 | 46 | 50 |
| 1/2 Waist (cm) | 21 | 24 | 24 | 28 | 30 |
| Sleeve Length (cm) | 33 | 35 | 37 | 41 | 45 |
| Swim Hat Size | XS–S | XS–S | M | L–XL | L–XL |
| Head Circumference | 44–48cm | 44–48cm | 48–52cm | 52–56cm | 52–56cm |
| Brim Width | 5 | 5 | 5 | 5 | 5 |
| Wet Bag | One Size – 30cm x 30cm x 5cm | ||||