Accurate measurements = perfect fit for your little one.
We recommend measuring your baby rather than choosing by age — every child grows at their own pace.
Measure from the top of the head to the heel (no pointed toes).
Measure under the arms around the fullest part of the chest.
(For rompers, onesies & suits)
Measure from the front collar down to the bottom of the crotch.
Useful for choosing booties.
Measure around the widest part of the head.
All measurements are in cm / inches.
| AGE / SIZE | Height (cm / in) | Chest (cm / in) | Front to crotch (cm / in) | Foot Length (cm / in) | Head Circumference (cm / in) |
|---|---|---|---|---|---|
| Premie 2–3 kg | 44–48 / 17–19 | 34–36 / 13–14 | 32 / 12.5 | 7 / 2.8 | 34–36 / 13–14 |
| Premie 3–4 kg | 48–52 / 19–20.5 | 36–38 / 14–15 | 34 / 13.5 | 8 / 3.2 | 36–38 / 14–15 |
| Newborn | 52–56 / 20.5–22 | 38–40 / 15–15.8 | 36 / 14.2 | 9 / 3.5 | 38–40 / 15–15.8 |
| 0–3 months | 56–62 / 22–24 | 40–42 / 15.8–16.5 | 37 / 14.6 | 9 / 3.5 | 36–40 / 14.2–15.8 |
| 3–6 months | 62–68 / 24–27 | 42–46 / 16.5–18 | 40 / 15.8 | 10 / 3.9 | 40–42 / 15.8–16.5 |
| 6–9 months | 68–74 / 27–29 | 46–49 / 18–19.3 | 42 / 16.5 | 11 / 4.3 | 42–44 / 16.5–17 |
| 9–12 months | 74–80 / 29–31.5 | 49–51 / 19.3–20 | 44 / 17 | 12 / 4.7 | 44–46 / 17–18 |
| 12–18 months | 80–86 / 31.5–34 | 51–53 / 20–21 | 46 / 18 | 12.5 / 5 | 46–50 / 18–20 |
| 18–24 months | 86–90 / 34–35.5 | 53–54 / 21–21.3 | 48 / 19 | 13 / 5.2 | 50–52 / 20–20.5 |
| 2 years | 90–92 / 35.5–37 | 54–55 / 21.3–21.7 | 50 / 20 | 13.5 / 5.4 | 52–54 / 20.5–21.3 |
Height + chest are enough.
Height + chest + front-to-crotch are needed.
Choose the larger size for comfort.
Send your baby’s measurements to our WhatsApp: +1 (437) 452-7002
We will recommend the perfect size.
This is Maiia
the little girl who inspired the very first Battesimo outfit
What began as one mother’s search for something meaningful became a brand trusted by thousands of families worldwide.
Every design still carries the same intention: to create something worthy of your child’s most important moments.
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