Trending Categories
Trending Brands
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.
144 items
Sort by:
View Product: Mudpie Baby One Piece Swimsuit
Mudpie Baby
One Piece Swimsuit
Size 6-9 mo
$34.99 $26.24 25% off with code THANKU
46% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 8
$11.99 $8.99 25% off with code THANKU
63% off estimated retailView Product: Unbranded One Piece Swimsuit
Unbranded
One Piece Swimsuit
Size 6-9 mo
$14.99 $11.24 25% off with code THANKU
54% off estimated retailView Product: Janie and Jack Two Piece Swimsuit
Janie and Jack
Two Piece Swimsuit
Size 8
$14.99 $11.99 20% off with code THANKU
64% off estimated retailView Product: First Impressions Rash Guard
First Impressions
Rash Guard
Size 6-9 mo
$13.99 $11.19 20% off with code THANKU
48% off estimated retailView Product: Little Peixoto Two Piece Swimsuit
Little Peixoto
Two Piece Swimsuit
Size 8
$23.99 $17.99 25% off with code THANKU
63% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 8
$14.99 $9.74 35% off with code THANKU
54% off estimated retailView Product: Roberta Roller Rabbit Swimsuit Cover Up
Roberta Roller Rabbit
Swimsuit Cover Up
Size 8
$14.99 $9.74 35% off with code THANKU
81% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 6-9 mo
$10.99 $8.79 20% off with code THANKU
35% off estimated retailView Product: Hanna Andersson Two Piece Swimsuit
Hanna Andersson
Two Piece Swimsuit
Size 8
$23.99 $15.59 35% off with code THANKU
41% off estimated retailView Product: Les Tout Petits One Piece Swimsuit
Les Tout Petits
One Piece Swimsuit
Size 8
$19.99 $15.99 20% off with code THANKU
79% off estimated retailView Product: Baby Boden One Piece Swimsuit
Baby Boden
One Piece Swimsuit
Size 6-9 mo
$13.99 $10.49 25% off with code THANKU
48% off estimated retailView Product: Assorted Brands One Piece Swimsuit
Assorted Brands
One Piece Swimsuit
Size 8
$13.99 $10.49 25% off with code THANKU
57% off estimated retailView Product: Calypso St. Barth One Piece Swimsuit
Calypso St. Barth
One Piece Swimsuit
Size 8
$26.99 $20.24 25% off with code THANKU
79% off estimated retailView Product: Sunshine Swing Two Piece Swimsuit
Sunshine Swing
Two Piece Swimsuit
Size 8
$17.99 $13.49 25% off with code THANKU
53% off estimated retailView Product: Wonder Nation Two Piece Swimsuit
Wonder Nation
Two Piece Swimsuit
Size 6-9 mo
$6.99 $5.59 20% off with code THANKU
36% off estimated retailView Product: Wonder Nation One Piece Swimsuit
Wonder Nation
One Piece Swimsuit
Size 6-9 mo
$5.99 $4.79 20% off with code THANKU
45% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 6-9 mo
$10.99 $8.79 20% off with code THANKU
35% off estimated retailView Product: Unbranded One Piece Swimsuit
Unbranded
One Piece Swimsuit
Size 6-9 mo
$13.99 $11.19 20% off with code THANKU
36% off estimated retailView Product: Cat & Jack One Piece Swimsuit
Cat & Jack
One Piece Swimsuit
Size 6-9 mo
$12.99 $10.39 20% off with code THANKU
23% off estimated retail