Charts change. Kids grow. And nobody wants to read a table while a toddler is climbing on them. So we built a size finder right into our collections.
How it works
Pick your child's age. If you have it, add a height, weight or head size for a closer fit. We work backwards to the right size and show only the styles that are in stock right now, so you never land on a sold-out size.
- Swimwear and swim diapers: age, plus optional height and weight. BANZ® swimwear is cut loose for comfort, and if your child is between sizes we choose the larger size.
- Sunglasses: age, plus an optional head size. Baby is 0–2 years, Kids is older.
- Earmuffs: pick your child's age to see Baby and Kids styles.
- Sun hats: age, plus a head measurement. Hats are sized by head size, so a quick measurement gives the closest fit.
Private by design
The measurements you enter are never saved. The finder works in your browser to match sizes and show what is in stock.
Swimwear savings
While you are sizing up swim: buy any 2 swim pieces and get 50% off both. The discount is taken off automatically at checkout, no code needed.
Still not sure? Our full size charts are always there, and our team is happy to help you choose before you order.