Option 80, 65-73 cm recommended, less than one year old
Option 90, recommended height 73-85 cm, 1-2 years old
Option 100, recommended height 85-95 cm, 2-3 years old
Option 110, recommended height 95-105 cm, 3-4 years old
The above is only recommended height and age, not as a reason for return.
Please combine the baby's usual dressing habits, fat children can consider big--size