Buying clothes online for a growing baby can feel like guesswork. Age labels are only a starting point, because two 18-month-olds can be very different sizes. Here's how to get it right the first time.
Why age labels aren't enough
A label like "18M" describes a typical child of that age, but babies grow at their own pace. Height, build and even nappy bulk all affect fit. That's why measuring is more reliable than going by age alone.
Measure a frock that already fits
Measure a frock that already fits
The easiest method is to measure something your daughter wears comfortably today:
- Lay the frock flat on a table and smooth it out.
- Chest: measure straight across just below the arms, then double the number.
- Length: measure from the highest point of the shoulder down to the hem.
Compare both numbers with the size chart. If the chest is between two sizes, choose the bigger one.
Our size chart
| Age | Chest (inches) | Length (inches) | Size |
|---|---|---|---|
| 12 Months | 19" | 14" | 12M |
| 18 Months | 20" | 16" | 18M |
| 2 Years | 21" | 18" | 2Y |
| 2.5 Years | 21.5" | 19" | 2.5Y |
| 3 Years | 22" | 20" | 3Y |
| 4 Years | 23" | 22" | 4Y |
See the full chart, up to 8 years, in our size guide.
When to size up
- She's between sizes: the larger size will last longer.
- She's near a birthday or growth spurt: babies can move up a size in a few weeks.
- It's for a special occasion a month or more away: buy for the size she'll be then.
- You prefer a relaxed fit for hot weather: a little extra room feels cooler.
Signs a frock is too small
Look for red marks at the armholes or waist, a hem that sits well above the knee when she stands, or buttons and elastic that pull. If you see these, it's time to move up.
Still unsure?
Send us your daughter's age and the measurements of a frock that fits her on WhatsApp at +92 348 3662328 and we'll suggest a size. If it doesn't fit, you can exchange within 7 days. See Returns & Exchanges.
Ready to shop? Browse our lawn frock and shorts sets.
