We use centimeters in our sizing. It gives a more accurate fit.
Our sizes: 45 cm, 50 cm, 60 cm, 70 cm and 80cm.
To get the right size for your baby , all you need is the baby’s length.

45 centimeters - 0 to 2 weeks
Fits 17 to 20 inches

50 centimeters - 0 to 2 months
Fits 19 to 22 inches.

60 centimeters - 2 to 5 months
Fits 22 to 25 inches.

70 centimeters - 6 to 12 months
Fits 26 to 30 inches.

80 centimeters - 12 to 30 months
Fits from 30 to 34 inches.