Size Info | Recommended Fit (Australian Standards) | Shirt Measurements | |||
---|---|---|---|---|---|
Size | Age Range | Height (cm) | Weight (kg) | Shirt Length (cm) | Chest Width (cm) |
2/3 | 2–3 yrs | 90–98 | 12–14 | 44.4 | 31.1 |
4 | 3.5–4.5 yrs | 98–105 | 14–17 | 47.3 | 34.0 |
5 | 4.5–5.5 yrs | 105–112 | 17–19 | 48.6 | 35.2 |
6 | 5.5–6.5 yrs | 112–118 | 19–21.5 | 53.7 | 36.5 |
7 | 6.5–7.5 yrs | 118–124 | 21.5–24 | 56.2 | 37.8 |
8 | 7.5–8.5 yrs | 124–130 | 24–26.5 | 59.7 | 39.7 |
10 | 9–10 yrs | Follows Age-Based Sizing | 61.0 | 41.6 | |
12 | 11–12 yrs | Follows Age-Based Sizing | 62.2 | 43.5 | |
14 | 13–14 yrs | Follows Age-Based Sizing | 64.8 | 45.4 | |
16 | 15–16 yrs | Follows Age-Based Sizing | 67.3 | 47.3 |
Our sizing follows Australian age-based standards. If your child usually wears a size 6 in clothing, our size 6 will likely be the right fit.
Our shirts are slim fit with a tailored look. If your child is on the upper end of height or weight, size up for comfort.
For a slightly looser or longer fit, consider going one size up — especially for events later in the season.
Size Chart

Find Your Child’s Size
Disclaimer: This sizing tool is intended as a guide based on typical Australian slim-fit measurements. Some children may fall outside standard proportions. If your child is taller, shorter, heavier, or lighter than average for their height, we recommend referring to the full measurement chart. Just Suits is not liable for size selection made using this tool alone.
FAQ's
How do I know which size to pick if my child is in between sizes?
If your child is near the upper end of the recommended height or weight, we suggest sizing up for comfort — especially for longer events or upcoming growth spurts.
What does “Slim Fit” mean?
Slim fit means the shirt has a neater, more tailored cut — especially around the chest and waist — compared to a standard or loose fit. It’s not tight or restrictive, just cleaner and more structured. Many parents size up if their child has a broader build or prefers a little extra room to move.
What if I order the wrong size? Can I exchange it?
Absolutely. We offer easy exchanges on unworn shirts — just keep the tags on and contact us within 14 days of receiving your order.
My child is tall and slim / short and stocky — will the shirt still fit well?
Our fit is designed to be neat and structured. If your child has a unique body shape, compare their chest size to our measurement chart. You can also size up for added flexibility.
Why are sizes 10, 12, 14, and 16 not available in the sizing tool?
We’re still finalising height and weight ranges for these sizes. For now, they follow standard age-based sizing and are true to fit for most kids in those age groups.