> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://swegmark.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How do I find the right size in swimwear online?

For an underwire bikini top with cup sizes, your usual bra measurement is a good starting point. For swimsuits, measure under the bust and across the fullest part of the bust, just as you would for a bra, and then use our swimwear size chart. You’ll find both the measuring instructions and the size chart in our guide [Find Your Size](https://www.swegmark.com/g/find-your-perfect-size).