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Boys' Swimwear

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Whether it's a day at the pool or the beach, your little man needs a comfortable and stylish look. At thredUP, you'll find boys' swimwear in a variety of styles, colors, and designs that he will love, and at up to 90% off estimated retail, the prices will make you happy as well.

1,171 items
Hawke & Co. Size Small youth

View Product: Hawke & Co. Size Small youth

Hawke & Co.

Size Small youth
$8.99 $31

$7.19 20% off with

Old Navy Size 6-12 mo

View Product: Old Navy Size 6-12 mo

Old Navy

Size 6-12 mo
$5.99 $13
Nike Size Small kids

View Product: Nike Size Small kids

Nike

Size Small kids
$18.99 $36

$15.19 20% off with

The Children's Place Size 24 mo

View Product: The Children's Place Size 24 mo

The Children's Place

Size 24 mo
$5.99 $15
Disney Size 4T

View Product: Disney Size 4T

Disney

Size 4T
$6.99 $9
Mick Mack Ltd Size 12 mo

View Product: Mick Mack Ltd Size 12 mo

Mick Mack Ltd

Size 12 mo
$4.99 $14
Carter's Size 3T

View Product: Carter's Size 3T

Carter's

Size 3T
$9.99 $24

$7.99 20% off with

Gymboree Size 5

View Product: Gymboree Size 5

Gymboree

Size 5
$8.99 $25

$7.19 20% off with

Disney Size 3T

View Product: Disney Size 3T

Disney

Size 3T
$4.99 $9
Carter's Size 18 mo

View Product: Carter's Size 18 mo

Carter's

Size 18 mo
$8.99 $24

$7.19 20% off with

Assorted Brands Size Small kids
Price Drop BadgePrice Drop

View Product: Assorted Brands Size Small kids

Assorted Brands

Size Small kids
$15.99 $51

$7.99 50% off with

Gymboree Size 12-18 mo
Price Drop BadgePrice Drop

View Product: Gymboree Size 12-18 mo

Gymboree

Size 12-18 mo
$6.99 $22
Gymboree Size 12-18 mo
Price Drop BadgePrice Drop

View Product: Gymboree Size 12-18 mo

Gymboree

Size 12-18 mo
$5.99 $22
Arizona Jean Company Size 4T

View Product: Arizona Jean Company Size 4T

Arizona Jean Company

Size 4T
$4.99 $9
Gymboree Size 18-24 mo

View Product: Gymboree Size 18-24 mo

Gymboree

Size 18-24 mo
$9.99 $25

$7.99 20% off with

Marvel Size 4

View Product: Marvel Size 4

Marvel

Size 4
$7.99 $17

$6.39 20% off with

Old Navy Size 0-3 mo
Price Drop BadgePrice Drop

View Product: Old Navy Size 0-3 mo

Old Navy

Size 0-3 mo
$6.99 $13
Gymboree Size 0-3 mo
New With Tags BadgeNew With Tags

View Product: Gymboree Size 0-3 mo

Gymboree

Size 0-3 mo
$8.99 $16.99

$7.19 20% off with

Old Navy Size 3T

View Product: Old Navy Size 3T

Old Navy

Size 3T
$8.99 $17

$7.19 20% off with

Unbranded Size 3-6 mo

View Product: Unbranded Size 3-6 mo

Unbranded

Size 3-6 mo
$6.99 $20
Old Navy Size 18-24 mo

View Product: Old Navy Size 18-24 mo

Old Navy

Size 18-24 mo
$6.99 $13
Cat & Jack Size 9 mo

View Product: Cat & Jack Size 9 mo

Cat & Jack

Size 9 mo
$4.99 $10
Cat & Jack Size 6

View Product: Cat & Jack Size 6

Cat & Jack

Size 6
$6.99 $10
Disney Pixar Size 3T

View Product: Disney Pixar Size 3T

Disney Pixar

Size 3T
$6.99 $13
Unbranded Size 6

View Product: Unbranded Size 6

Unbranded

Size 6
$7.99 $20

$6.39 20% off with

Body Glove Size 7

View Product: Body Glove Size 7

Body Glove

Size 7
$9.99 $26

$7.99 20% off with

Marvel Size 12 mo
Price Drop BadgePrice Drop

View Product: Marvel Size 12 mo

Marvel

Size 12 mo
$6.99 $14
Nautica Size 3T
Price Drop BadgePrice Drop

View Product: Nautica Size 3T

Nautica

Size 3T
$7.99 $26

$6.39 20% off with

Carter's Size 18 mo
Price Drop BadgePrice Drop

View Product: Carter's Size 18 mo

Carter's

Size 18 mo
$7.99 $28

$6.39 20% off with

J. McLaughlin Size X-Large kids
Price Drop BadgePrice Drop

View Product: J. McLaughlin Size X-Large kids

J. McLaughlin

Size X-Large kids
$19.99 $58

$11.99 40% off with

Hanna Andersson Size 80 cm
Price Drop BadgePrice Drop

View Product: Hanna Andersson Size 80 cm

Hanna Andersson

Size 80 cm
$16.99 $38

$10.19 40% off with

Kiko & Max Size 12

View Product: Kiko & Max Size 12

Kiko & Max

Size 12
$12.99 $38

$9.09 30% off with

Little Maven Size 18 mo

View Product: Little Maven Size 18 mo

Little Maven

Size 18 mo
$6.99 $20
OshKosh B'gosh Size 18 mo

View Product: OshKosh B'gosh Size 18 mo

OshKosh B'gosh

Size 18 mo
$7.99 $21

$6.39 20% off with

Baby Gap Size 6-12 mo

View Product: Baby Gap Size 6-12 mo

Baby Gap

Size 6-12 mo
$7.99 $20

$6.39 20% off with

Disney Size 18 mo

View Product: Disney Size 18 mo

Disney

Size 18 mo
$3.99 $7
Tommy Bahama Size 3T

View Product: Tommy Bahama Size 3T

Tommy Bahama

Size 3T
$6.99 $21
Baby Gap Size 3T

View Product: Baby Gap Size 3T

Baby Gap

Size 3T
$7.99 $20

$6.39 20% off with

Abercrombie Size 5

View Product: Abercrombie Size 5

Abercrombie

Size 5
$12.99 $30

$10.39 20% off with

Baby Gap Size 2T

View Product: Baby Gap Size 2T

Baby Gap

Size 2T
$7.99 $20

$6.39 20% off with

Baby Gap Size 3T

View Product: Baby Gap Size 3T

Baby Gap

Size 3T
$7.99 $20

$6.39 20% off with

Jumping Beans Size 4
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View Product: Jumping Beans Size 4

Jumping Beans

Size 4
$8.99 $26

$6.29 30% off with

Unbranded Size Small youth
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View Product: Unbranded Size Small youth

Unbranded

Size Small youth
$8.99 $31

$6.29 30% off with

Carter's Size 3 mo
Price Drop BadgePrice Drop

View Product: Carter's Size 3 mo

Carter's

Size 3 mo
$5.99 $24
Baby Gap Size 12-18 mo
Price Drop BadgePrice Drop

View Product: Baby Gap Size 12-18 mo

Baby Gap

Size 12-18 mo
$7.99 $20

$6.39 20% off with

Assorted Brands Size Small youth

View Product: Assorted Brands Size Small youth

Assorted Brands

Size Small youth
$10.99 $31

$6.59 40% off with

Old Navy Size 4T

View Product: Old Navy Size 4T

Old Navy

Size 4T
$8.99 $15

$7.19 20% off with

Gymboree Size 3-6 mo

View Product: Gymboree Size 3-6 mo

Gymboree

Size 3-6 mo
$7.99 $22

$6.39 20% off with

Old Navy Size Large kids

View Product: Old Navy Size Large kids

Old Navy

Size Large kids
$11.99 $25

$9.59 20% off with

WonderKids Size 18 mo

View Product: WonderKids Size 18 mo

WonderKids

Size 18 mo
$4.99 $7