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Whether it's for summertime or swimming lessons, your girls need the right gear for when they dive into the water. Check out thredUP's selection of girls' swimwear to discover items from top brands at up to 90% off estimated retail.
1,629 items
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View Product: Cat & Jack Swimsuit Cover Up
Cat & Jack
Swimsuit Cover Up
Size X-Small youth
$8.99 $4.94 45% off with code GOBIG
47% off estimated retailView Product: Nicole Miller New York One Piece Swimsuit
Nicole Miller New York
One Piece Swimsuit
Size 4
$7.99 $4.39 45% off with code GOBIG
60% off estimated retailView Product: Ocean Drive Clothing Co. Rash Guard
Ocean Drive Clothing Co.
Rash Guard
Size 5T
$14.99 $8.24 45% off with code GOBIG
44% off estimated retailView Product: OshKosh B'gosh One Piece Swimsuit
OshKosh B'gosh
One Piece Swimsuit
Size 12 mo
$8.99 $4.94 45% off with code GOBIG
57% off estimated retailView Product: OshKosh B'gosh One Piece Swimsuit
OshKosh B'gosh
One Piece Swimsuit
Size 12 mo
$10.99 $6.04 45% off with code GOBIG
54% off estimated retailView Product: Art Class Two Piece Swimsuit
Art Class
Two Piece Swimsuit
Size X-Small kids
$10.99 $6.04 45% off with code GOBIG
35% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size X-Large tots
$11.99 $6.59 45% off with code GOBIG
68% off estimated retailView Product: Hanna Andersson One Piece Swimsuit
Hanna Andersson
One Piece Swimsuit
Size 3
$27.99 $15.39 45% off with code GOBIG
31% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 14
$12.99 $7.14 45% off with code GOBIG
60% off estimated retailView Product: Vineyard Vines Performance Rash Guard
Vineyard Vines Performance
Rash Guard
Size 14
$32.99 $18.14 45% off with code GOBIG
19% off estimated retailView Product: Assorted Brands Two Piece Swimsuit
Assorted Brands
Two Piece Swimsuit
Size 14
$14.99 $8.24 45% off with code GOBIG
54% off estimated retailView Product: Hanna Andersson One Piece Swimsuit
Hanna Andersson
One Piece Swimsuit
Size 6-12 mo
$13.99 $7.69 45% off with code GOBIG
46% off estimated retailView Product: Assorted Brands Two Piece Swimsuit
Assorted Brands
Two Piece Swimsuit
Size 10
$15.99 $8.79 45% off with code GOBIG
51% off estimated retailView Product: Gap Kids Two Piece Swimsuit
Gap Kids
Two Piece Swimsuit
Size Small kids
$19.99 $10.99 45% off with code GOBIG
50% off estimated retailView Product: Lilly Pulitzer One Piece Swimsuit
Lilly Pulitzer
One Piece Swimsuit
Size 12
$36.99 $20.34 45% off with code GOBIG
24% off estimated retailView Product: Freestyle By Danskin One Piece Swimsuit
Freestyle By Danskin
One Piece Swimsuit
Size 7
$9.99 $5.49 45% off with code GOBIG
37% off estimated retailView Product: Cat & Jack Swimsuit Cover Up
Cat & Jack
Swimsuit Cover Up
Size X-Large youth
$9.99 $5.49 45% off with code GOBIG
41% off estimated retailView Product: Cat & Jack Two Piece Swimsuit
Cat & Jack
Two Piece Swimsuit
Size Large kids
$8.99 $4.94 45% off with code GOBIG
47% off estimated retailView Product: Justice One Piece Swimsuit
Justice
One Piece Swimsuit
Size X-Small kids
$23.99 $13.19 45% off with code GOBIG
31% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 6 mo
$8.99 $4.94 45% off with code GOBIG
59% off estimated retailView Product: Gap Kids One Piece Swimsuit
Gap Kids
One Piece Swimsuit
Size Medium kids
$19.99 $10.99 45% off with code GOBIG
50% off estimated retailView Product: More Than Magic Swimsuit Cover Up
More Than Magic
Swimsuit Cover Up
Size X-Large youth
$7.99 $4.39 45% off with code GOBIG
50% off estimated retailView Product: OndadeMar One Piece Swimsuit
OndadeMar
One Piece Swimsuit
Size 18-24 mo
$23.99 $13.19 45% off with code GOBIG
68% off estimated retailView Product: Wetsuit Club by Candlesticks One Piece Swimsuit
Wetsuit Club by Candlesticks
One Piece Swimsuit
Size 18 mo
$9.99 $5.49 45% off with code GOBIG
37% off estimated retailView Product: Unbranded Two Piece Swimsuit
Unbranded
Two Piece Swimsuit
Size Large youth
$10.99 $6.04 45% off with code GOBIG
66% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size X-Small youth
$8.99 $4.94 45% off with code GOBIG
47% off estimated retailView Product: Justice Two Piece Swimsuit
Justice
Two Piece Swimsuit
Size Large youth
$13.99 $7.69 45% off with code GOBIG
57% off estimated retailView Product: Athleta Girl x Simone Biles Rash Guard
Athleta Girl x Simone Biles
Rash Guard
Size 14
$15.99 $8.79 45% off with code GOBIG
70% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size Large youth
$8.99 $4.94 45% off with code GOBIG
47% off estimated retailView Product: Chelsea & Violet Two Piece Swimsuit
Chelsea & Violet
Two Piece Swimsuit
Size 10
$23.99 $13.19 45% off with code GOBIG
51% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 2T
$11.99 $6.59 45% off with code GOBIG
45% off estimated retail