Kidswear is sold by age, so your size chart is a table of ages with body and garment measurements for each one. For a first order, spread the minimum across the ages your customers buy most, and keep the youngest and oldest sizes thin until you have sales to guide you.
Our kidswear runs from 0 to 24 months for babywear and 1 to 12 years for older children, depending on the style. This post explains how to build a kidswear size chart by age and how to split your first order.
How our kidswear sizes run
Each style has its own age range:
| Style | Age range |
|---|---|
| Romper | 0 to 24 months |
| T-shirt and shorts set | 1 to 12 years |
| Frock | 1 to 10 years |
| Shirt set | 1 to 12 years |
| Kids’ nightwear | 1 to 12 years |
Within each range, sizes are grouped into age steps. Babywear steps are narrow because babies grow quickly in the first two years. Older children’s steps are wider, often a year or two per size. The exact size steps for your order are confirmed at quotation, and sizes can be mixed within a style.
What goes into a kidswear size chart
A useful size chart for your brand has two parts.
Body measurements
These help parents choose. For each age size, list the typical height and chest, and for bottoms, the waist. Height is the measurement parents know most reliably, so many brands put it first.
Garment measurements
These help you check stock. They are taken flat on the finished garment: chest width, body length, sleeve length, waist relaxed and stretched, and inside leg for trousers. These are the figures you compare against the sample and the bulk order.
We share the garment measurements for each style and age size. Measure the approved sample yourself and use those figures as your reference. Our post on checking a kidswear sample explains how to measure flat.
Why children’s sizes need extra care
Children of the same age differ widely in height and build. A size chart by age is a starting point, not a promise. A few habits reduce returns and unhappy parents:
- Show height alongside age, so a tall three-year-old’s parent can size up.
- Say whether a style runs roomy or close, especially for nightwear and rompers.
- For jersey, note that the fabric stretches. For woven, note that it does not.
- Give one line of advice, such as “between sizes, choose the larger”.
If you sell on a marketplace, confirm the current size chart format with that marketplace. We label sizes to the specification you give us.
Splitting a first order across ages
The minimum is 100 pieces per style, and age sizes can be mixed within it. The question is how to divide them.
Most kidswear demand sits in the middle of a style’s range. The very youngest and oldest sizes sell more slowly, because fewer parents buy them for that style. A sensible first split follows that curve.
Here is an illustration for a T-shirt and shorts set across six age sizes. It is an example of a shape, not a rule:
| Age size | Pieces |
|---|---|
| 1 to 2 years | 10 |
| 2 to 3 years | 20 |
| 3 to 4 years | 20 |
| 4 to 5 years | 20 |
| 5 to 6 years | 15 |
| 6 to 8 years | 15 |
Adjust it to your customers. A boutique selling occasion frocks may skew older. A babywear seller may focus on rompers in the 3 to 12 month steps. If you sell gifts, sizes that parents buy for newborns and first birthdays may matter more.
Colours and sizes together
If you order more than one colour in a style, the size split applies within each colour. Two colours across six sizes quickly leaves only a handful of pieces per size per colour. For a first order, many sellers find fewer colours with a fuller size spread easier to sell through. The colour split is confirmed at quotation.
Using sales to set the next ratio
The first order is the most useful guide to the second. Track sales by style, colour and age size. On reorder:
- Increase the sizes that sold out first.
- Reduce sizes still on the shelf.
- Consider dropping a size that barely moved, or keeping it only in your core colour.
- Note any fit comments from parents and raise them with us before the next run.
Next step
Browse the styles and age ranges on our white label kids clothing page. Then send us the styles, fabric, colours, quantities per age size and the country where you will sell. Labelling and safety requirements for children’s clothing depend on the destination country and are confirmed at quotation. We share garment measurements with the quotation and make a sample so you can check the fit before production.