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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.
265 items
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View Product: Athleta Athleta Girl Cannonball Short
Athleta
Athleta Girl Cannonball Short
Size 12
$33.99 $18.69 45% off with code GOBIG
42% off estimated retailView Product: Old Navy One Piece Swimsuit
Old Navy
One Piece Swimsuit
Size Small kids
$8.99 $4.94 45% off with code GOBIG
50% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size X-Small tots
$13.99 $7.69 45% off with code GOBIG
36% off estimated retailView Product: Old Navy One Piece Swimsuit
Old Navy
One Piece Swimsuit
Size Large youth
$11.99 $6.59 45% off with code GOBIG
33% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 4T
$16.99 $9.34 45% off with code GOBIG
37% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 5T
$13.99 $7.69 45% off with code GOBIG
48% off estimated retailView Product: Posh Peanut One Piece Swimsuit
Posh Peanut
One Piece Swimsuit
Size 6-12 mo
$20.99 $11.54 45% off with code GOBIG
36% off estimated retailView Product: Posh Peanut One Piece Swimsuit
Posh Peanut
One Piece Swimsuit
Size 6-12 mo
$18.99 $10.44 45% off with code GOBIG
42% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size Medium tots
$14.99 $8.24 45% off with code GOBIG
44% off estimated retailView Product: Hanna Andersson One Piece Swimsuit
Hanna Andersson
One Piece Swimsuit
Size 6
$21.99 $12.09 45% off with code GOBIG
46% off estimated retailView Product: Cotton on Kids One Piece Swimsuit
Cotton on Kids
One Piece Swimsuit
Size 13
$18.99 $10.44 45% off with code GOBIG
24% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 0-3 mo
$9.99 $5.49 45% off with code GOBIG
54% off estimated retailView Product: Assorted Brands Two Piece Swimsuit
Assorted Brands
Two Piece Swimsuit
Size 14
$15.99 $8.79 45% off with code GOBIG
51% off estimated retailView Product: Assorted Brands Two Piece Swimsuit
Assorted Brands
Two Piece Swimsuit
Size 14
$15.99 $8.79 45% off with code GOBIG
51% off estimated retailView Product: Sweet Honey Two Piece Swimsuit
Sweet Honey
Two Piece Swimsuit
Size 12 mo
$19.99 $10.99 45% off with code GOBIG
25% off estimated retailView Product: Old Navy One Piece Swimsuit
Old Navy
One Piece Swimsuit
Size Small youth
$10.99 $6.04 45% off with code GOBIG
38% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size X-Large kids
$12.99 $7.14 45% off with code GOBIG
23% off estimated retailView Product: Hanna Andersson One Piece Swimsuit
Hanna Andersson
One Piece Swimsuit
Size 110 cm
$27.99 $15.39 45% off with code GOBIG
31% off estimated retailView Product: Unbranded Two Piece Swimsuit
Unbranded
Two Piece Swimsuit
Size X-Large kids
$12.99 $7.14 45% off with code GOBIG
60% off estimated retailView Product: Little Marc Jacobs One Piece Swimsuit
Little Marc Jacobs
One Piece Swimsuit
Size 8
$26.99 $14.84 45% off with code GOBIG
76% off estimated retailView Product: Little Marc Jacobs One Piece Swimsuit
Little Marc Jacobs
One Piece Swimsuit
Size 8
$26.99 $14.84 45% off with code GOBIG
76% off estimated retailView Product: Justice One Piece Swimsuit
Justice
One Piece Swimsuit
Size X-Large youth
$16.99 $9.34 45% off with code GOBIG
55% off estimated retail