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.

Updated on: 09/09/2026