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.
304 items
Sort by:
View Product: Swimsuits for all Swimsuit Bottoms
Swimsuits for all
Swimsuit Bottoms
Size 22 Plus
$20.99 $15.74 25% off with code THRIFT25
44% off estimated retailView Product: Raisins One Piece Swimsuit
Raisins
One Piece Swimsuit
Size 22 Plus
$17.99 $13.49 25% off with code THRIFT25
37% off estimated retailView Product: Swimsuits for all Swimsuit Bottoms
Swimsuits for all
Swimsuit Bottoms
Size 22 Plus
$17.99 $13.49 25% off with code THRIFT25
52% off estimated retailView Product: Swimsuits for all Swimsuit Cover Up
Swimsuits for all
Swimsuit Cover Up
Size 22 Plus
$22.99 $17.24 25% off with code THRIFT25
59% off estimated retailView Product: Swim by Cacique Swimsuit Bottoms
Swim by Cacique
Swimsuit Bottoms
Size 26 Plus
$20.99 $15.74 25% off with code THRIFT25
58% off estimated retailView Product: Swim by Cacique Swimsuit Top
Swim by Cacique
Swimsuit Top
Size 22 Plus
$27.99 $20.99 25% off with code THRIFT25
45% off estimated retailView Product: Swim by Cacique Swimsuit Cover Up
Swim by Cacique
Swimsuit Cover Up
Size 22 Plus
$28.99 $21.74 25% off with code THRIFT25
61% off estimated retailView Product: L.L.Bean Swimsuit Bottoms
L.L.Bean
Swimsuit Bottoms
Size 22 Plus
$13.99 $10.49 25% off with code THRIFT25
56% off estimated retailView Product: Swim by Cacique Swimsuit Bottoms
Swim by Cacique
Swimsuit Bottoms
Size 22 Plus
$24.99 $18.74 25% off with code THRIFT25
51% off estimated retailView Product: Bleu Rod Beattie Swimsuit Bottoms
Bleu Rod Beattie
Swimsuit Bottoms
Size 0
$13.99 $10.49 25% off with code THRIFT25
54% off estimated retailView Product: Assorted Brands Swimsuit Top
Assorted Brands
Swimsuit Top
Size 22 Plus
$14.99 $11.24 25% off with code THRIFT25
40% off estimated retailView Product: Unbranded Swimsuit Bottoms
Unbranded
Swimsuit Bottoms
Size 22 Plus
$14.99 $11.24 25% off with code THRIFT25
40% off estimated retailView Product: Aqua Green One Piece Swimsuit
Aqua Green
One Piece Swimsuit
Size 26 Plus
$23.99 $17.99 25% off with code THRIFT25
36% off estimated retailView Product: Robby Lens Swimwear One Piece Swimsuit
Robby Lens Swimwear
One Piece Swimsuit
Size 22 Plus
$27.99 $20.99 25% off with code THRIFT25
50% off estimated retailView Product: Unbranded One Piece Swimsuit
Unbranded
One Piece Swimsuit
Size 26 Plus
$16.99 $12.74 25% off with code THRIFT25
55% off estimated retailView Product: Wave Zone Swimsuit Cover Up
Wave Zone
Swimsuit Cover Up
Size 22 Plus
$18.99 $14.24 25% off with code THRIFT25
32% off estimated retailView Product: Miraclesuit One Piece Swimsuit
Miraclesuit
One Piece Swimsuit
Size 22 Plus
$43.99 $32.99 25% off with code THRIFT25
61% off estimated retailView Product: Croft & Barrow Swimsuit Top
Croft & Barrow
Swimsuit Top
Size 22 Plus
$8.99 $6.74 25% off with code THRIFT25
43% off estimated retailView Product: PrettyLittleThing Swimsuit Top
PrettyLittleThing
Swimsuit Top
Size 22 Plus
$10.99 $8.24 25% off with code THRIFT25
65% off estimated retailView Product: Beach Native One Piece Swimsuit
Beach Native
One Piece Swimsuit
Size 26 Plus
$38.99 $29.24 25% off with code THRIFT25
58% off estimated retailView Product: 24th & Ocean Swimsuit Bottoms
24th & Ocean
Swimsuit Bottoms
Size 22 Plus
$14.99 $11.24 25% off with code THRIFT25
40% off estimated retailView Product: Garnet Hill One Piece Swimsuit
Garnet Hill
One Piece Swimsuit
Size 22 Plus
$34.99 $26.24 25% off with code THRIFT25
63% off estimated retailView Product: Avenue One Piece Swimsuit
Avenue
One Piece Swimsuit
Size 22 Plus
$20.99 $15.74 25% off with code THRIFT25
56% off estimated retailView Product: Swimsuits for all One Piece Swimsuit
Swimsuits for all
One Piece Swimsuit
Size 22 Plus
$27.99 $20.99 25% off with code THRIFT25
50% off estimated retailView Product: Assorted Brands Swimsuit Top
Assorted Brands
Swimsuit Top
Size 26 Plus
$12.99 $9.74 25% off with code THRIFT25
48% off estimated retailView Product: Swimsuits for all Swimsuit Bottoms
Swimsuits for all
Swimsuit Bottoms
Size 26 Plus
$12.99 $9.74 25% off with code THRIFT25
65% off estimated retailView Product: Tropical Escape Swimsuit Top
Tropical Escape
Swimsuit Top
Size 22 Plus
$14.99 $11.24 25% off with code THRIFT25
60% off estimated retailView Product: Esther Williams Swimsuit Top
Esther Williams
Swimsuit Top
Size 22 Plus
$26.99 $20.24 25% off with code THRIFT25
47% off estimated retailView Product: Dippin Daisy's Swimwear One Piece Swimsuit
Dippin Daisy's Swimwear
One Piece Swimsuit
Size 22 Plus
$28.99 $21.74 25% off with code THRIFT25
49% off estimated retailView Product: Swimsuits for all Swimsuit Top
Swimsuits for all
Swimsuit Top
Size 22 Plus
$14.99 $11.24 25% off with code THRIFT25
60% off estimated retailView Product: Island Escape Swimsuit Bottoms
Island Escape
Swimsuit Bottoms
Size 22 Plus
$27.99 $20.99 25% off with code THRIFT25
37% off estimated retailView Product: Swimsuits for all Swimsuit Top
Swimsuits for all
Swimsuit Top
Size 22 Plus
$23.99 $17.99 25% off with code THRIFT25
36% off estimated retailView Product: PrettyLittleThing Swimsuit Bottoms
PrettyLittleThing
Swimsuit Bottoms
Size 0
$15.99 $11.99 25% off with code THRIFT25
50% off estimated retailView Product: PrettyLittleThing Swimsuit Bottoms
PrettyLittleThing
Swimsuit Bottoms
Size 0
$15.99 $11.99 25% off with code THRIFT25
50% off estimated retailView Product: PrettyLittleThing Swimsuit Bottoms
PrettyLittleThing
Swimsuit Bottoms
Size 0
$12.99 $9.74 25% off with code THRIFT25
59% off estimated retailView Product: PrettyLittleThing One Piece Swimsuit
PrettyLittleThing
One Piece Swimsuit
Size 0
$15.99 $11.99 25% off with code THRIFT25
66% off estimated retailView Product: Swimsuits for all One Piece Swimsuit
Swimsuits for all
One Piece Swimsuit
Size 22 Plus
$19.99 $14.99 25% off with code THRIFT25
64% off estimated retailView Product: Unbranded Swimsuit Bottoms
Unbranded
Swimsuit Bottoms
Size 22 Plus
$13.99 $10.49 25% off with code THRIFT25
44% off estimated retailView Product: J.Crew One Piece Swimsuit
J.Crew
One Piece Swimsuit
Size 22 Plus
$34.99 $26.24 25% off with code THRIFT25
72% off estimated retailView Product: Inches Off Swimwear by Figure Magic Swimsuit Top
Inches Off Swimwear by Figure Magic
Swimsuit Top
Size 26 Plus
$22.99 $17.24 25% off with code THRIFT25
39% off estimated retailView Product: Swim by Cacique Swimsuit Top
Swim by Cacique
Swimsuit Top
Size 22 Plus
$28.99 $21.74 25% off with code THRIFT25
43% off estimated retailView Product: Anne Cole One Piece Swimsuit
Anne Cole
One Piece Swimsuit
Size 22 Plus
$32.99 $24.74 25% off with code THRIFT25
56% off estimated retailView Product: Swim by Cacique One Piece Swimsuit
Swim by Cacique
One Piece Swimsuit
Size 22 Plus
$28.99 $21.74 25% off with code THRIFT25
61% off estimated retailView Product: Bleu Rod Beattie Swimsuit Bottoms
Bleu Rod Beattie
Swimsuit Bottoms
Size 22 Plus
$18.99 $14.24 25% off with code THRIFT25
70% off estimated retailView Product: Bleu Rod Beattie Swimsuit Bottoms
Bleu Rod Beattie
Swimsuit Bottoms
Size 22 Plus
$19.99 $14.99 25% off with code THRIFT25
69% off estimated retailView Product: Beach House Swimsuit Bottoms
Beach House
Swimsuit Bottoms
Size 22 Plus
$18.99 $14.24 25% off with code THRIFT25
62% off estimated retailView Product: Swimsuits for all Swimsuit Bottoms
Swimsuits for all
Swimsuit Bottoms
Size 22 Plus
$18.99 $14.24 25% off with code THRIFT25
50% off estimated retailView Product: Swim by Cacique Swimsuit Bottoms
Swim by Cacique
Swimsuit Bottoms
Size 26 Plus
$17.99 $13.49 25% off with code THRIFT25
64% off estimated retailView Product: Swim by Cacique Swimsuit Bottoms
Swim by Cacique
Swimsuit Bottoms
Size 22 Plus
$23.99 $17.99 25% off with code THRIFT25
54% off estimated retailView Product: Assorted Brands Swimsuit Bottoms
Assorted Brands
Swimsuit Bottoms
Size 0
$12.99 $9.74 25% off with code THRIFT25
48% off estimated retailView Product: Swimsuits for all Swimsuit Top
Swimsuits for all
Swimsuit Top
Size 26 Plus
$18.99 $14.24 25% off with code THRIFT25
50% off estimated retailView Product: Longitude One Piece Swimsuit
Longitude
One Piece Swimsuit
Size 22 Plus
$36.99 $27.74 25% off with code THRIFT25
57% off estimated retailView Product: Assorted Brands Swimsuit Top
Assorted Brands
Swimsuit Top
Size 26 Plus
$10.99 $8.24 25% off with code THRIFT25
56% off estimated retailView Product: Swim by Cacique Swimsuit Top
Swim by Cacique
Swimsuit Top
Size 26 Plus
$23.99 $17.99 25% off with code THRIFT25
52% off estimated retailView Product: Beach House Swimsuit Bottoms
Beach House
Swimsuit Bottoms
Size 22 Plus
$15.99 $11.99 25% off with code THRIFT25
68% off estimated retailView Product: Beach Diva Swimsuit Bottoms
Beach Diva
Swimsuit Bottoms
Size 22 Plus
$13.99 $10.49 25% off with code THRIFT25
44% off estimated retail