Size Guide
The Unknown Children — Size Guide
Our kids streetwear is sized to fit comfortably with a little room to grow. Sizes are based on your child's age, but every kid is a bit different — if your little one is between sizes, we recommend going up.
Tops, Bottoms, Hoodies, Jackets & Sets
| Size | Age | Height | Chest |
|---|---|---|---|
| 1 | 12–18 months | 76–83 cm | 47–50 cm |
| 2 | 2–3 years | 84–98 cm | 51–54 cm |
| 3 | 3–4 years | 99–104 cm | 54–57 cm |
| 4 | 4–5 years | 105–112 cm | 57–60 cm |
| 5 | 5–6 years | 113–119 cm | 60–63 cm |
Toddler Onesie
The Toddler Onesie uses month-based sizing.
| Size | Age | Height |
|---|---|---|
| 3M | 0–3 months | 56–61 cm |
| 6M | 3–6 months | 62–67 cm |
| 9M | 6–9 months | 68–71 cm |
| 12M | 9–12 months | 72–77 cm |
| 18M | 12–18 months | 78–82 cm |
| 24M | 18–24 months | 83–87 cm |
How to measure your child
- Height — stand them flat against a wall (no shoes). Measure from floor to top of head.
- Chest — wrap a soft tape around the fullest part of their chest, just under the arms. Snug, not tight.
- Waist — around the natural waist, just above the belly button. Keep the tape relaxed.
Still not sure?
Email us at theunknownchildren.au@gmail.com with your child's height and age and we'll recommend a size. We're a small Aussie team — we usually reply within 24 hours.
Note: sizing is a guide. Cotton fabrics may shrink slightly with first wash. We recommend cold wash + low tumble dry to minimise shrinkage.