Trending Categories
Trending Brands
Whether you're going on vacation, heading to the beach for a day, or getting in some laps at the pool, you need a good swimsuit. Shop thredUP's selection of plus-size swimwear to find amazing items at up to 90% off estimated retail.
127 items
Sort by:
View Product: Free Country Swimsuit Bottoms
Free Country
Swimsuit Bottoms
Size 1X Plus
$16.99 $12.74 25% off with code SHINE
32% off estimated retailView Product: Calia by Carrie Underwood Swimsuit Bottoms
Calia by Carrie Underwood
Swimsuit Bottoms
Size 1X Plus
$13.99 $9.79 30% off with code SHINE
56% off estimated retailView Product: Kenneth Cole REACTION Swimsuit Bottoms
Kenneth Cole REACTION
Swimsuit Bottoms
Size 1X Plus
$20.99 $15.74 25% off with code SHINE
68% off estimated retailView Product: SJB St. Active by St. Johns Bay Swimsuit Top
SJB St. Active by St. Johns Bay
Swimsuit Top
Size 1X Plus
$20.99 $14.69 30% off with code SHINE
34% off estimated retailView Product: Swimsuits for all Swimsuit Top
Swimsuits for all
Swimsuit Top
Size 1X Plus
$15.99 $10.39 35% off with code SHINE
57% off estimated retailView Product: Swim by Cacique Swimsuit Top
Swim by Cacique
Swimsuit Top
Size 1X Plus
$41.99 $21.00 50% off with code SHINE
46% off estimated retailView Product: Sea Angel One Piece Swimsuit
Sea Angel
One Piece Swimsuit
Size 1X Plus
$24.99 $14.99 40% off with code SHINE
47% off estimated retailView Product: Tabitha Brown for Target Swimsuit Bottoms
Tabitha Brown for Target
Swimsuit Bottoms
Size 1X Plus
$16.99 $11.89 30% off with code SHINE
32% off estimated retailView Product: Peyton & Parker Swimsuit Bottoms
Peyton & Parker
Swimsuit Bottoms
Size 1X Plus
$13.99 $9.79 30% off with code SHINE
44% off estimated retailView Product: Assorted Brands Swimsuit Bottoms
Assorted Brands
Swimsuit Bottoms
Size 1X Plus
$14.99 $9.74 35% off with code SHINE
40% off estimated retailView Product: Calia by Carrie Underwood Swimsuit Top
Calia by Carrie Underwood
Swimsuit Top
Size 1X Plus
$16.99 $11.04 35% off with code SHINE
46% off estimated retailView Product: Jessica Simpson Swimsuit Top
Jessica Simpson
Swimsuit Top
Size 1X Plus
$24.99 $16.24 35% off with code SHINE
51% off estimated retailView Product: Kenneth Cole REACTION Swimsuit Top
Kenneth Cole REACTION
Swimsuit Top
Size 1X Plus
$16.99 $10.19 40% off with code SHINE
55% off estimated retailView Product: Assorted Brands Swimsuit Bottoms
Assorted Brands
Swimsuit Bottoms
Size 1X Plus
$12.99 $8.44 35% off with code SHINE
48% off estimated retailView Product: Sports Illustrated One Piece Swimsuit
Sports Illustrated
One Piece Swimsuit
Size 1X Plus
$15.99 $9.59 40% off with code SHINE
44% off estimated retailView Product: Old Navy Plus Swimsuit Bottoms
Old Navy Plus
Swimsuit Bottoms
Size 1X Plus
$17.99 $9.89 45% off with code SHINE
55% off estimated retailView Product: Assorted Brands Swimsuit Bottoms
Assorted Brands
Swimsuit Bottoms
Size 1X Plus
$10.99 $7.69 30% off with code SHINE
56% off estimated retailView Product: Dippin Daisy's Swimwear Swimsuit Bottoms
Dippin Daisy's Swimwear
Swimsuit Bottoms
Size 1X Plus
$13.99 $8.39 40% off with code SHINE
63% off estimated retailView Product: Nicole Miller Studio Swimsuit Bottoms
Nicole Miller Studio
Swimsuit Bottoms
Size 1X Plus
$24.99 $16.24 35% off with code SHINE
67% off estimated retailView Product: Maeve by Anthropologie Swimsuit Bottoms
Maeve by Anthropologie
Swimsuit Bottoms
Size 1X Plus
$29.99 $19.49 35% off with code SHINE
53% off estimated retailView Product: Island Soul Swimsuit Bottoms
Island Soul
Swimsuit Bottoms
Size 1X Plus
$16.99 $11.89 30% off with code SHINE
55% off estimated retailView Product: Fe Noel x Target Swimsuit Bottoms
Fe Noel x Target
Swimsuit Bottoms
Size 1X Plus
$11.99 $8.99 25% off with code SHINE
45% off estimated retailView Product: Theatrical One Piece Swimsuit
Theatrical
One Piece Swimsuit
Size 1X Plus
$26.99 $17.54 35% off with code SHINE
71% off estimated retailView Product: coastal blue One Piece Swimsuit
coastal blue
One Piece Swimsuit
Size 1X Plus
$21.99 $14.29 35% off with code SHINE
71% off estimated retailView Product: Kenneth Cole REACTION Swimsuit Bottoms
Kenneth Cole REACTION
Swimsuit Bottoms
Size 1X Plus
$11.99 $7.79 35% off with code SHINE
68% off estimated retail