Size guide
Our onesies come in 6 sizes, from 2 months to 3 years. Choose by baby's age, using the chart below.
The size chart
| Size | Approximate age |
|---|---|
| 70 | 2 to 5 months |
| 80 | 6 to 12 months |
| 90 | 13 to 18 months |
| 100 | 18 to 24 months |
| 110 | 2 to 2½ years |
| 120 | 2½ to 3 years |
On product pages, each size is shown with its age range, for example “6-12 months (80)”.
Little Zoo tip: between two sizes, go for the larger one. The onesie has a roomy fit, and babies grow fast.
Ages are approximate. The size doesn't fit? You have 14 days after delivery to return the item, unworn and in its original packaging.