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Shop Women's Swimwear at up to 90% off estimated retail! thredUP has a huge selection of gently used women's swimwear. Find bikinis, one-pieces, board shorts and cover ups from brands like Seafolly, Aqua or Speedo at thredUP.
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![Collections By Catalina Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/604941915/complimentary.jpg)
![Collections By Catalina Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/604941868/complimentary.jpg)
Collections By Catalina
Swimsuit Bottoms
Size 2X Plus
$14.99 $8.24 45% off with code GOBIG
48% off estimated retail![Collections By Catalina Swimsuit Top (view 2)](https://cf-assets-thredup.thredup.com/assets/604872076/complimentary.jpg)
![Collections By Catalina Swimsuit Top (view 1)](https://cf-assets-thredup.thredup.com/assets/604872013/complimentary.jpg)
Collections By Catalina
Swimsuit Top
Size 3X Plus
$14.99 $8.24 45% off with code GOBIG
48% off estimated retail![PrettyLittleThing Swimsuit Cover Up (view 2)](https://cf-assets-thredup.thredup.com/assets/603449250/complimentary.jpg)
![PrettyLittleThing Swimsuit Cover Up (view 1)](https://cf-assets-thredup.thredup.com/assets/603449227/complimentary.jpg)
PrettyLittleThing
Swimsuit Cover Up
Size Sm
$13.99 $7.69 45% off with code GOBIG
70% off estimated retail![Profile by Gottex One Piece Swimsuit (view 2)](https://cf-assets-thredup.thredup.com/assets/603558841/complimentary.jpg)
![Profile by Gottex One Piece Swimsuit (view 1)](https://cf-assets-thredup.thredup.com/assets/603558777/complimentary.jpg)
Profile by Gottex
One Piece Swimsuit
Size 10
$106.99 $58.84 45% off with code GOBIG
20% off estimated retail