| Weight | Size |
|---|---|
| Up to 30 kg (4–6 years) | XXS |
| 31 to 45 kg (6–8 years) | XS |
| 45 to 55 kg | S |
| 55 to 65 kg | M |
| 65 to 75 kg | L |
| 75 to 85 kg | XL |
| Over 85 kg | XXL |
The above sizes are an indication and are not binding. The trousers have a stretchy elastic waistband, so if in doubt, feel free to choose one size larger. The sizing is Thai.