Onesie Sizing Guide


Adult onesies

Our onesies are designed to be loose-fitting and can be worn by adults who are at least 145cm tall. If you are slightly taller than the measurement, the wrists and ankle cuffs may not be able to reach your wrist/ankle. Do contact us if you would require a larger XL size.

Onesies are supposed to be comfy and baggy, so there is a lot of room for your chest and waist. If you would like to be safe, do go for one size larger, otherwise the measurements should fit you nicely 🙂


    Our Onesie Kids range comes in four sizes – for children height 88cm to about 140cm. We measure this by taking the length from the top of the hood to the bottom of the ankle cuff. For 2 – 5 year olds, small and medium sizes are usually good fits for them, while large and XL are suitable for 5 – 10 year olds.

    Onesies are meant to be baggy, so you may consider getting a larger size for your child to grow into. You may also consider getting an Adult sized onesie for kids that are in between the Kids and Adult range.


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