Sizing Guide
Our onesies are designed for a comfy fit and made from soft, stretchable cotton for your little one’s everyday adventures. Finding the perfect fit is easy! Use the guide below to choose the right size based on your baby’s age and body measurements.
Infant Size Chart
📏 Size Chart (in inches)
| Age (months) | Chest Width (inches) | Length (inches) |
|---|---|---|
| 0–3 | 7 | 14 |
| 3–6 | 8 | 15 |
| 6–9 | 9 | 16 |
| 9–12 | 10 | 17 |
📏 Size Chart (in centimeters)
| Age (months) | Chest Width (cm) | Length (cm) |
|---|---|---|
| 0–3 | 17.8 | 35.6 |
| 3–6 | 20.3 | 38.1 |
| 6–9 | 22.9 | 40.6 |
| 9–12 | 25.4 | 43.2 |
📌 Notes:
- If your baby is between sizes, we recommend sizing up for extra comfort and longer wear.
- All garments allow for diaper room and movement.
- Measurements are approximate and may vary slightly by style.
