What size should I choose? (Metric sizing guide)

We recommend checking your girl’s waist, high hip and low hip measurements in centimetres and comparing them to our size chart:
👉 Size Chart – CM

Here are some product-specific tips to help:

• UnderSwim OG & G-Fit: If she’s between sizes, go up. The fit needs to be snug to create a leak-proof seal, especially around the leg openings.
• Period Swim Bikini Bottoms: These run slightly large. If she’s between sizes, go down.
• UnderDance: True to size but skews to the larger end of the scale.
• UnderLiner: These have a softer fit with a bit more give. Go with her usual undie size.
• Bumpers Briefs: True to size and stretchy, designed to feel like everyday undies.

Need help choosing? [Get in touch](mailto:orders@elteesydney.com.au) with her measurements (waist, hip, flat-lay of her current undies) and we’ll give you our best recommendation.