| Sunsuit Sizing (in CM) | Full Suit Length (Neck To Ankle) | Back Collar to Crotch | Arm Length | Waist Width | Ankle Cuff Width |
|---|---|---|---|---|---|
| 6-12 Months | 58 | 36 | 30 | 25 | 8 |
| 12-18 Months | 63 | 38 | 34 | 26 | 8.5 |
| Size 15-21 (Size 1) | 65 | 39 | 35 | 26 | 8.5 |
| 18-24 Months | 68 | 40 | 37 | 26 | 8.5 |
| Size 2 | 72 | 42 | 40 | 27 | 8.5 |
| Size 3 | 77 | 44 | 42 | 28 | 9 |
| Size 4 | 83 | 45 | 44 | 29 | 9 |
| Size 5 | 89 | 47 | 46 | 30 | 9 |
| Size 6 | 95 | 50 | 48 | 30.5 | 9.5 |
| Size 7 | 101 | 53 | 50 | 31 | 9.5 |
| Size 8 | 109 | 56 | 52 | 31.5 | 9.5 |
| Size 9 | 115 | 59 | 54 | 32.5 | 10.5 |
| Size 10 | 121 | 62 | 56 | 33.5 | 10.5 |