Size guide

To choose the right size, go by your child's height in centimetres: age is only a rough guide.

How to measure your child

Measure them standing up (or lying down for a baby), from the top of the head to the heels. Between two sizes? Go one up: the onesie will be comfier and last longer.

Size chart

Child's heightApprox. ageSize on the label
56–66 cm0–6 months70
66–70 cm6–9 months80
70–80 cm9–15 months90
80–90 cm15–24 months100
90–100 cm2–3 years110
100–110 cm3–4 years120

Not sure? Write to us via the Contact page with your child's height and we'll help you before you order.