Find the perfect fit
Size guide
Our sizes follow your little one's age, from Newborn to 3–4 years. Use this guide as a starting point — and if you're unsure, we're always happy to help.
| Size | Typical age | Good to know |
|---|---|---|
| Newborn | From birth, for smaller babies | Ideal for the first few weeks |
| 0–3M | 0 to 3 months | A great first size for most babies |
| 3–6M | 3 to 6 months | |
| 6–12M | 6 to 12 months | Room for crawling and sitting |
| 1–2Y | 12 to 24 months | Fits over nappies |
| 2–3Y | 2 to 3 years | |
| 3–4Y | 3 to 4 years |
Sizing can vary between products and brands. Every baby grows at their own pace, so use age as a guide — if your little one is between sizes, we usually suggest sizing up.
Tips for choosing a size
1
Go by age first
Start with the size that matches your little one's age today.
2
Between sizes? Size up
Babies grow quickly — a little room means more wear.
3
Check the product page
Some styles fit differently. Look for size notes on each product.
4
Buying a gift?
Choose the next size up so it fits for longer.
Need help choosing the perfect size?Tell us your little one's age and the item you love — we'll recommend a size.
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