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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.
590 items
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View Product: Cat & Jack Rash Guard
Cat & Jack
Rash Guard
Size X-Large youth
$15.99 $12.79 20% off with code HOTDEAL
35% off estimated retailView Product: Unbranded One Piece Swimsuit
Unbranded
One Piece Swimsuit
Size X-Small tots
$13.99 $11.19 20% off with code HOTDEAL
40% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 12-18 mo
$10.99 $8.79 20% off with code HOTDEAL
47% off estimated retailView Product: Unbranded Swimsuit Cover Up
Unbranded
Swimsuit Cover Up
Size Medium youth
$10.99 $7.69 30% off with code HOTDEAL
54% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size X-Large youth
$14.99 $11.99 20% off with code HOTDEAL
57% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 24 mo
$13.99 $11.19 20% off with code HOTDEAL
40% off estimated retailView Product: Shade Critters Two Piece Swimsuit
Shade Critters
Two Piece Swimsuit
Size 6-12 mo
$20.99 $15.74 25% off with code HOTDEAL
61% off estimated retailView Product: Wonder Nation One Piece Swimsuit
Wonder Nation
One Piece Swimsuit
Size 0-3 mo
$7.99 $6.39 20% off with code HOTDEAL
36% off estimated retailView Product: Wonder Nation One Piece Swimsuit
Wonder Nation
One Piece Swimsuit
Size 12 mo
$6.99 $5.59 20% off with code HOTDEAL
45% off estimated retailView Product: Wonder Nation Two Piece Swimsuit
Wonder Nation
Two Piece Swimsuit
Size 3-6 mo
$7.99 $6.39 20% off with code HOTDEAL
36% off estimated retailView Product: Old Navy One Piece Swimsuit
Old Navy
One Piece Swimsuit
Size 12-18 mo
$13.99 $11.19 20% off with code HOTDEAL
27% off estimated retailView Product: Mud Pie One Piece Swimsuit
Mud Pie
One Piece Swimsuit
Size 9-12 mo
$12.99 $10.39 20% off with code HOTDEAL
45% off estimated retailView Product: L.O.L Vintage One Piece Swimsuit
L.O.L Vintage
One Piece Swimsuit
Size Small youth
$15.99 $12.79 20% off with code HOTDEAL
54% off estimated retailView Product: Wonder Nation Two Piece Swimsuit
Wonder Nation
Two Piece Swimsuit
Size 0-3 mo
$10.99 $8.79 20% off with code HOTDEAL
18% off estimated retailView Product: Carter's Two Piece Swimsuit
Carter's
Two Piece Swimsuit
Size 3-6 mo
$13.99 $11.19 20% off with code HOTDEAL
60% off estimated retailView Product: Unbranded One Piece Swimsuit
Unbranded
One Piece Swimsuit
Size 6-9 mo
$10.99 $8.79 20% off with code HOTDEAL
54% off estimated retailView Product: Wonder Nation One Piece Swimsuit
Wonder Nation
One Piece Swimsuit
Size 6-9 mo
$6.99 $5.59 20% off with code HOTDEAL
45% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 6-9 mo
$11.99 $9.59 20% off with code HOTDEAL
41% off estimated retailView Product: Gap Kids One Piece Swimsuit
Gap Kids
One Piece Swimsuit
Size Small kids
$16.99 $9.34 45% off with code HOTDEAL
48% off estimated retailView Product: Old Navy One Piece Swimsuit
Old Navy
One Piece Swimsuit
Size 12-18 mo
$8.99 $5.84 35% off with code HOTDEAL
55% off estimated retailView Product: Zimmermann One Piece Swimsuit
Zimmermann
One Piece Swimsuit
Size 12-24 mo
$48.99 $26.94 45% off with code HOTDEAL
60% off estimated retailView Product: Baby Gap One Piece Swimsuit
Baby Gap
One Piece Swimsuit
Size 12-18 mo
$8.99 $5.84 35% off with code HOTDEAL
70% off estimated retailView Product: Assorted Brands Two Piece Swimsuit
Assorted Brands
Two Piece Swimsuit
Size 18 mo
$9.99 $6.49 35% off with code HOTDEAL
59% off estimated retailView Product: Old Navy One Piece Swimsuit
Old Navy
One Piece Swimsuit
Size 12-18 mo
$11.99 $7.79 35% off with code HOTDEAL
38% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 5
$16.99 $11.04 35% off with code HOTDEAL
40% off estimated retailView Product: Gymboree One Piece Swimsuit
Gymboree
One Piece Swimsuit
Size 12-18 mo
$21.99 $13.19 40% off with code HOTDEAL
33% off estimated retailView Product: OshKosh B'gosh Two Piece Swimsuit
OshKosh B'gosh
Two Piece Swimsuit
Size 12-18 mo
$15.99 $10.39 35% off with code HOTDEAL
45% off estimated retailView Product: Egg by Susan Lazar One Piece Swimsuit
Egg by Susan Lazar
One Piece Swimsuit
Size 12 mo
$20.99 $12.59 40% off with code HOTDEAL
22% off estimated retailView Product: Baby Gap One Piece Swimsuit
Baby Gap
One Piece Swimsuit
Size 18-24 mo
$16.99 $11.04 35% off with code HOTDEAL
48% off estimated retailView Product: Penelope Mack One Piece Swimsuit
Penelope Mack
One Piece Swimsuit
Size 4T
$18.99 $12.34 35% off with code HOTDEAL
40% off estimated retailView Product: Betsey Johnson One Piece Swimsuit
Betsey Johnson
One Piece Swimsuit
Size 14
$17.99 $10.79 40% off with code HOTDEAL
61% off estimated retailView Product: Lands' End Rash Guard
Lands' End
Rash Guard
Size Medium infants
$15.99 $9.59 40% off with code HOTDEAL
44% off estimated retailView Product: Pelle One Piece Swimsuit
Pelle
One Piece Swimsuit
Size Small infants
$16.99 $10.19 40% off with code HOTDEAL
44% off estimated retailView Product: The Children's Place One Piece Swimsuit
The Children's Place
One Piece Swimsuit
Size 12-18 mo
$10.99 $7.14 35% off with code HOTDEAL
50% off estimated retailView Product: Egg New York One Piece Swimsuit
Egg New York
One Piece Swimsuit
Size 18 mo
$21.99 $13.19 40% off with code HOTDEAL
72% off estimated retailView Product: Unbranded One Piece Swimsuit
Unbranded
One Piece Swimsuit
Size 2X-large kids
$16.99 $11.04 35% off with code HOTDEAL
51% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 18 mo
$13.99 $9.09 35% off with code HOTDEAL
29% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 12 mo
$15.99 $10.39 35% off with code HOTDEAL
23% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 18 mo
$15.99 $10.39 35% off with code HOTDEAL
23% off estimated retailView Product: Floatimini One Piece Swimsuit
Floatimini
One Piece Swimsuit
Size 12 mo
$21.99 $13.19 40% off with code HOTDEAL
67% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 3-6 mo
$13.99 $9.09 35% off with code HOTDEAL
29% off estimated retailView Product: Armani Junior One Piece Swimsuit
Armani Junior
One Piece Swimsuit
Size 4
$28.99 $17.39 40% off with code HOTDEAL
74% off estimated retailView Product: Hanna Andersson Rash Guard
Hanna Andersson
Rash Guard
Size 6-12 mo
$28.99 $13.05 55% off with code HOTDEAL
41% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 12
$15.99 $10.39 35% off with code HOTDEAL
57% off estimated retailView Product: Baby Gap One Piece Swimsuit
Baby Gap
One Piece Swimsuit
Size 18-24 mo
$16.99 $10.19 40% off with code HOTDEAL
48% off estimated retailView Product: Assorted Brands Wetsuit
Assorted Brands
Wetsuit
Size X-Large youth
$26.99 $17.54 35% off with code HOTDEAL
63% off estimated retail