Kids wetsuits: thickness, sizing and buying second-hand
Kids grow out of wetsuits fast, often before they wear out, which makes them one of the best things to buy second-hand.
Thickness
Wetsuit thickness is shown as two numbers, like 3/2. The first is the thickness of the body panels in millimetres and the second is the arms and legs. A 3/2 suits most of New Zealand in summer. A 4/3 is warmer for winter surfing or southern waters. Kids get cold faster than adults, so if in doubt, go warmer.
Getting the size right
Kids' wetsuits are sized by age or chest and height, and every brand's chart differs, so ask the seller for the brand and size. A wetsuit should be snug everywhere, with no baggy pockets of water at the back or knees, and your child should still be able to lift their arms and squat. Don't buy one to grow into: a loose wetsuit lets cold water flush through.
What to check on a used wetsuit
| Check | What to look for |
|---|---|
| Seams | No splits, especially at the crotch, armpits and knees |
| Zip | Runs smoothly, with the cord or pull tab still attached |
| Neoprene | Still stretchy, not stiff or cracked |
| Smell | A rinse in fresh water and wetsuit wash sorts most of it |
Selling a wetsuit
Rinse it in fresh water, dry it inside out in the shade, and photograph it flat. Include the brand, size, thickness and your child's height when it fitted best.