Baby Fishing Shirt Romper Size Chart

Every measurement below is for our Baby Not a Fishing Shirt Romper (UPF50+), in centimetres. Rompers do up with press studs underneath, so they stay put while she's being carried, crawling or splashing.

Baby romper size chart (cm)

All measurements are in centimetres. Age is an estimate only — babies vary enormously, so go by the measurements rather than the months. Standard manufacturing tolerances of ±1–2 cm apply.

Fabric and care

• UPF50+ sun protection, woven into the fabric — it will not wash out
• 100% polyester, breathable and quick dry
• Press stud fastening at the crotch for easy nappy changes
• Cold machine wash inside out, line dry in the shade, do not tumble dry

How to measure your baby's size at home

Our chart uses half measurements — the garment measured flat, not around your baby:

1. Lay a bodysuit that currently fits well flat on a table, done up.
2. Measure straight across from armpit to armpit. That's the chest.
3. Measure from the shoulder down to the crotch seam. That's the length.
4. Match those to the chart above.

Frequently asked sizing questions

What sizes does the baby romper come in?
Three sizes: 00 (3–6 months), 0 (6–12 months) and 1 (12–18 months).

Should I size up so it lasts longer?
A little room is fine, but a romper that's too big rides up and exposes skin — which defeats the point of UPF50+. Go by the chest measurement.

Can she swim in it?
Yes. The fabric is quick dry and made for saltwater and beach days. Rinse after salt or chlorine.

Big brother or sister too? See the kids fishing shirt size chart.

Still not sure? Email us at hello@mwcac.com.au and we'll help you find the right fit.