We base our sizing on Australian standard children’s sizes, so if your child usually wears a size 4, that’s where we’d recommend starting! That said, every garment is a little different depending on the style and fabric.
Some things to keep in mind:
Our zipped styles tend to have a firmer fit — if your little one is between sizes or prefers more room to move, we recommend sizing up.
Our stretch fabrics offer a bit more give and are perfect for growing kids.
Not sure which size to go for? Reach out! We’re more than happy to help guide you before you order.
Please note: We offer exchange only (not refunds), and items must be returned unused, with tags attached, and within 7 days of receiving your order. To help us keep things hygienic and fair for all customers, we ask that swimsuits be tried on over a nappy or underwear.
| Size | 0000 | 000 | 00 | 0 | 1 | 2 | 3 |
|---|---|---|---|---|---|---|---|
| Age | Newborn | 0-3 mths | 3-6 mths | 6-12 mths | 12-18 mths | 24 mths | 36 mths |
| Approx Weight (kg) | 3.5 | 6 | 8 | 10 | 12 | – | – |
| Approx Height (cm) | 52 | 62 | 68 | 76 | 86 | 92 | 100 |
| Body Length (cm) (Neck Line to Ankle) | 43 | 48 | 54 | 60 | 67 | 73.5 | 82 |
| Arm Length | 25.5 | 30 | 33 | 36.5 | 39 | 40 | 43 |
| Waist Circumference | 42 | 45 | 51 | 52 | 60 | 66 | 68 |
| Size | 1 | 2 | 3 |
|---|---|---|---|
| Age | 12-18 mths | 24 mths | 36 mths |
| Approx Weight (kg) | 12 | – | – |
| Approx Height (cm) | 86 | 92 | 100 |
| Body Length (cm) (Neck Line to Ankle) | TBA | 58 | 65 |
| Arm Length | TBA | 39 | 43 |
| Waist Circumference | TBA | 64 | 68 |
| Size | 2 | 4 | 6 | 8 |
|---|---|---|---|---|
| Waist | TBA | 26 | 28 | 30 |
| Inner Seam (Crotch) | TBA | 7 | 8.5 | 9 |
| Outer Seam (Length) | TBA | 28 | 30 | 34 |
| Size | 2 | 4 | 6 | 8 |
|---|---|---|---|---|
| Body Length (cm) | 41 | 45 | 49 | 52 |
| Body Width (cm) | 30 | 33.5 | 35.5 | 36.5 |
| Arm Length (collar to cuff) (cm) | 38 | 43 | 48 | 52 |
| Arm Length (inner arm to cuff) (cm) | 27 | 30 | 33 | 37 |
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Kooba Kids is the brain child of Sydney beach sider and mum of 3 young boys, Karlie. Our first product is the Zip-Ease swimsuit which we launched in 2018 - since then we have expanded our range to include: swimsuits for older kids, hats, shoes, beanies, bags and more!
Our swimsuits are Australian Made and UV50+ protection. We stock sizes from 0000 to cater for even the smallest of bubs all the way up to size 3.
