At Wonsie, we understand that everyone is unique, and finding the right fit is essential. That’s why we offer a variety of sizes to ensure our bodysuits provide maximum comfort for your loved one.

Wonsie Bodysuit Sizes

The numeric sizes on our garments are a general guide based on the age of a child. However, if you’re unsure which size to select, we recommend sizing up, especially if your child is taller than average or wears a nappy.

For our larger sizes (12/XS, 14/S, 16/M, 18/L, and 20/XL), these are designed to fit teenagers, adults, and the elderly. Please note that size 20/XL is very big and designed to fit a very large/tall adult. 

To find the best fit, we recommend checking our size chart, with special focus on the torso length. This measurement will give you the most accurate fit if your child or loved one doesn’t fall neatly into one of our size categories.

Swimwear

Our swimwear has excellent 4 way stretch, so we would recommend to purchase the smaller option, if you're in between sizes, for a neat body fit when wet.

Swim Nappies & bibs and other accessories

For swim nappies and other accessories, please refer to the specific product listing for detailed size information.

Need a Size Exchange?

If you need to exchange your garment for a different size, please refer to our exchange policy. Feel free to contact us at info@wonsie.com.au if you have any questions about sizing—we’re always happy to help!