Trending Categories
Trending Brands
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.
526 items
Sort by:
![Swimsuits for all Swimsuit Top (view 2)](https://cf-assets-thredup.thredup.com/assets/598171099/complimentary.jpg)
![Swimsuits for all Swimsuit Top (view 1)](https://cf-assets-thredup.thredup.com/assets/598171023/complimentary.jpg)
Swimsuits for all
Swimsuit Top
Size 30 Plus
$17.99 $9.89 45% off with code GOBIG
52% off estimated retail![Swimsuits for all One Piece Swimsuit (view 2)](https://cf-assets-thredup.thredup.com/assets/596311997/complimentary.jpg)
![Swimsuits for all One Piece Swimsuit (view 1)](https://cf-assets-thredup.thredup.com/assets/596311908/complimentary.jpg)
Swimsuits for all
One Piece Swimsuit
Size 24 Plus
$20.99 $11.54 45% off with code GOBIG
63% off estimated retail![Assorted Brands Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/595973483/complimentary.jpg)
![Assorted Brands Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/595973457/complimentary.jpg)
Assorted Brands
Swimsuit Bottoms
Size 3X Plus
$10.99 $6.04 45% off with code GOBIG
56% off estimated retail![Swimsuits for all Swimsuit Cover Up (view 2)](https://cf-assets-thredup.thredup.com/assets/595944007/complimentary.jpg)
![Swimsuits for all Swimsuit Cover Up (view 1)](https://cf-assets-thredup.thredup.com/assets/595943796/complimentary.jpg)
Swimsuits for all
Swimsuit Cover Up
Size 24 Plus
$24.99 $13.74 45% off with code GOBIG
56% off estimated retail![Swimsuits for all Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/591942751/complimentary.jpg)
![Swimsuits for all Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/591942858/complimentary.jpg)
Swimsuits for all
Swimsuit Bottoms
Size 24 Plus
$13.99 $7.69 45% off with code GOBIG
63% off estimated retail![Assorted Brands Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/591096509/complimentary.jpg)
![Assorted Brands Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/591096486/complimentary.jpg)
Assorted Brands
Swimsuit Bottoms
Size 3X Plus
$10.99 $6.04 45% off with code GOBIG
56% off estimated retail![Swim by Cacique Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/592595103/complimentary.jpg)
![Swim by Cacique Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/592594997/complimentary.jpg)
Swim by Cacique
Swimsuit Bottoms
Size 24 Plus
$19.99 $10.99 45% off with code GOBIG
60% off estimated retail![Assorted Brands One Piece Swimsuit (view 2)](https://cf-assets-thredup.thredup.com/assets/590383116/complimentary.jpg)
![Assorted Brands One Piece Swimsuit (view 1)](https://cf-assets-thredup.thredup.com/assets/590383102/complimentary.jpg)
Assorted Brands
One Piece Swimsuit
Size 30 Plus
$18.99 $10.44 45% off with code GOBIG
50% off estimated retail![Alpine Butterfly Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/589552897/complimentary.jpg)
![Alpine Butterfly Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/589552859/complimentary.jpg)
Alpine Butterfly
Swimsuit Bottoms
Size 3X Plus
$25.99 $14.29 45% off with code GOBIG
77% off estimated retail![FASHION TO FIGURE Swimsuit Top (view 2)](https://cf-assets-thredup.thredup.com/assets/589728735/complimentary.jpg)
![FASHION TO FIGURE Swimsuit Top (view 1)](https://cf-assets-thredup.thredup.com/assets/589728618/complimentary.jpg)
FASHION TO FIGURE
Swimsuit Top
Size 3X Plus
$19.99 $10.99 45% off with code GOBIG
20% off estimated retail![Assorted Brands Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/585850337/complimentary.jpg)
![Assorted Brands Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/585850312/complimentary.jpg)
Assorted Brands
Swimsuit Bottoms
Size 3X Plus
$12.99 $7.14 45% off with code GOBIG
48% off estimated retail![Swimsuits for all Swimsuit Top (view 2)](https://cf-assets-thredup.thredup.com/assets/585621848/complimentary.jpg)
![Swimsuits for all Swimsuit Top (view 1)](https://cf-assets-thredup.thredup.com/assets/585621714/complimentary.jpg)
Swimsuits for all
Swimsuit Top
Size 30 Plus
$26.99 $14.84 45% off with code GOBIG
52% off estimated retail![Swimsuits for all Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/585243187/complimentary.jpg)
![Swimsuits for all Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/585243138/complimentary.jpg)
Swimsuits for all
Swimsuit Bottoms
Size 24 Plus
$18.99 $10.44 45% off with code GOBIG
50% off estimated retail![Swimsuits for all Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/585242754/complimentary.jpg)
![Swimsuits for all Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/585242687/complimentary.jpg)
Swimsuits for all
Swimsuit Bottoms
Size 24 Plus
$18.99 $10.44 45% off with code GOBIG
50% off estimated retail![Swimsuits for all Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/585242945/complimentary.jpg)
![Swimsuits for all Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/585242905/complimentary.jpg)
Swimsuits for all
Swimsuit Bottoms
Size 24 Plus
$17.99 $9.89 45% off with code GOBIG
52% off estimated retail![Beach House Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/586856870/complimentary.jpg)
![Beach House Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/586856769/complimentary.jpg)
Beach House
Swimsuit Bottoms
Size 24 Plus
$28.99 $15.94 45% off with code GOBIG
43% off estimated retail![Swim by Cacique Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/584235505/complimentary.jpg)
![Swim by Cacique Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/584235387/complimentary.jpg)
Swim by Cacique
Swimsuit Bottoms
Size 24 Plus
$20.99 $11.54 45% off with code GOBIG
58% off estimated retail![Stoney Clover Lane x Target Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/582027876/complimentary.jpg)
![Stoney Clover Lane x Target Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/582027758/complimentary.jpg)
Stoney Clover Lane x Target
Swimsuit Bottoms
Size 3X Plus
$9.99 $5.49 45% off with code GOBIG
23% off estimated retail![Stoney Clover Lane Swimsuit Top (view 2)](https://cf-assets-thredup.thredup.com/assets/576913093/complimentary.jpg)
![Stoney Clover Lane Swimsuit Top (view 1)](https://cf-assets-thredup.thredup.com/assets/576913061/complimentary.jpg)
Stoney Clover Lane
Swimsuit Top
Size 3X Plus
$12.99 $7.14 45% off with code GOBIG
74% off estimated retail![Bal Harbour Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/540354389/complimentary.jpg)
![Bal Harbour Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/540354145/complimentary.jpg)
Bal Harbour
Swimsuit Bottoms
Size 3X Plus
$18.99 $10.44 45% off with code GOBIG
50% off estimated retail![Assorted Brands Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/573030935/complimentary.jpg)
![Assorted Brands Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/573030910/complimentary.jpg)
Assorted Brands
Swimsuit Bottoms
Size 3X Plus
$13.99 $7.69 45% off with code GOBIG
44% off estimated retail![Assorted Brands Swimsuit Bottoms (view 2)](https://cf-assets-thredup.thredup.com/assets/572789765/complimentary.jpg)
![Assorted Brands Swimsuit Bottoms (view 1)](https://cf-assets-thredup.thredup.com/assets/572789733/complimentary.jpg)
Assorted Brands
Swimsuit Bottoms
Size 3X Plus
$13.99 $7.69 45% off with code GOBIG
44% off estimated retail![Swimsuits for all Swimsuit Top (view 2)](https://cf-assets-thredup.thredup.com/assets/571134818/complimentary.jpg)
![Swimsuits for all Swimsuit Top (view 1)](https://cf-assets-thredup.thredup.com/assets/571134767/complimentary.jpg)
Swimsuits for all
Swimsuit Top
Size 30 Plus
$17.99 $9.89 45% off with code GOBIG
52% off estimated retail