thredUP LogothredUP | The Largest Online Consignment & Thrift StorethredUP
Magnifying glassZoom on item
HeartHeart icon
AccountLink to the thredUP account details
0
CartLink to your thredUP cart
Check out

Boys' Swimwear

ChevronNavigation chevron icon

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.

45 items·
Sort by:
Recently DiscountedChevronNavigation chevron icon
Filtering byBoys: swimwear
Unbranded Size 3-6 mo
Price Drop
View Product: Unbranded Size 3-6 mo

Unbranded

Size 3-6 mo
$9.99 $20

$4.99 50% off with

Hanna Andersson Size 60 cm
Price Drop
View Product: Hanna Andersson Size 60 cm

Hanna Andersson

Size 60 cm
$13.99 $38

$6.99 50% off with

Skechers Size 2T
Price Drop
View Product: Skechers Size 2T

Skechers

Size 2T
$9.99 $26

$5.99 40% off with

Nautica Size 3T
Price Drop
View Product: Nautica Size 3T

Nautica

Size 3T
$12.99 $26

$9.09 30% off with

Unbranded Size 3-6 mo
Price Drop
View Product: Unbranded Size 3-6 mo

Unbranded

Size 3-6 mo
$16.99 $41

$8.49 50% off with

Hanna Andersson Size 80 cm
Price Drop
View Product: Hanna Andersson Size 80 cm

Hanna Andersson

Size 80 cm
$19.99 $38

$11.99 40% off with

Assorted Brands Size Preemie
Price Drop
View Product: Assorted Brands Size Preemie

Assorted Brands

Size Preemie
$19.99 $41

$11.99 40% off with

Disney Pixar Size 12 mo
Price Drop
View Product: Disney Pixar Size 12 mo

Disney Pixar

Size 12 mo
$11.99 $31

$5.99 50% off with

Gymboree Outlet Size 6-12 mo
Price Drop
View Product: Gymboree Outlet Size 6-12 mo

Gymboree Outlet

Size 6-12 mo
$21.99 $37

$13.19 40% off with

Carter's Size 12 mo
Price Drop
View Product: Carter's Size 12 mo

Carter's

Size 12 mo
$9.99 $28

$4.99 50% off with

Hanna Andersson Size 70 cm
Price Drop
View Product: Hanna Andersson Size 70 cm

Hanna Andersson

Size 70 cm
$14.99 $28

$8.99 40% off with

Assorted Brands Size 2T
Price Drop
View Product: Assorted Brands Size 2T

Assorted Brands

Size 2T
$21.99 $41

$10.99 50% off with

Gymboree Size 2T
Price Drop
View Product: Gymboree Size 2T

Gymboree

Size 2T
$10.99 $25

$6.59 40% off with

Assorted Brands Size 6 mo
Price Drop
View Product: Assorted Brands Size 6 mo

Assorted Brands

Size 6 mo
$13.99 $41

$6.99 50% off with

Baby Gap Size 0-3 mo
Price Drop
View Product: Baby Gap Size 0-3 mo

Baby Gap

Size 0-3 mo
$9.99 $20

$6.99 30% off with

Cat & Jack Size 6-9 mo
Price Drop
View Product: Cat & Jack Size 6-9 mo

Cat & Jack

Size 6-9 mo
$14.99 $20

$8.99 40% off with

Unbranded Size 12-18 mo
Price Drop
View Product: Unbranded Size 12-18 mo

Unbranded

Size 12-18 mo
$14.99 $41

$7.49 50% off with

Baby Gap Size 6-12 mo
Price Drop
View Product: Baby Gap Size 6-12 mo

Baby Gap

Size 6-12 mo
$9.99 $20

$5.99 40% off with

Carter's Size 9 mo
Price Drop
View Product: Carter's Size 9 mo

Carter's

Size 9 mo
$9.99 $24

$5.99 40% off with

Unbranded Size Small infants
Price Drop
View Product: Unbranded Size Small infants

Unbranded

Size Small infants
$7.99 $20

$4.79 40% off with

Carter's Size 18 mo
Price Drop
View Product: Carter's Size 18 mo

Carter's

Size 18 mo
$11.99 $28

$7.19 40% off with

Baby Gap Size 0-3 mo
Price Drop
View Product: Baby Gap Size 0-3 mo

Baby Gap

Size 0-3 mo
$9.99 $20

$5.99 40% off with

Assorted Brands Size X-Small youth
Price Drop
View Product: Assorted Brands Size X-Small youth

Assorted Brands

Size X-Small youth
$31.99 $61

$19.19 40% off with

Assorted Brands Size 150 cm
Price Drop
View Product: Assorted Brands Size 150 cm

Assorted Brands

Size 150 cm
$15.99 $31

$7.99 50% off with

Carter's Size 12 mo
Price Drop
View Product: Carter's Size 12 mo

Carter's

Size 12 mo
$9.99 $24

$5.99 40% off with

Carter's Size 18 mo
Price Drop
View Product: Carter's Size 18 mo

Carter's

Size 18 mo
$11.99 $28

$7.19 40% off with

Disney Size Newborn
Price Drop
View Product: Disney Size Newborn

Disney

Size Newborn
$13.99 $20

$8.39 40% off with

Carter's Size 3 mo
Price Drop
View Product: Carter's Size 3 mo

Carter's

Size 3 mo
$9.99 $24

$5.99 40% off with

Floatimini Size 18 mo
Price Drop
View Product: Floatimini Size 18 mo

Floatimini

Size 18 mo
$15.99 $51

$11.19 30% off with

Baby Gap Size 3-6 mo
Price Drop
View Product: Baby Gap Size 3-6 mo

Baby Gap

Size 3-6 mo
$9.99 $20

$5.99 40% off with

Baby Gap Size 6 mo
Price Drop
View Product: Baby Gap Size 6 mo

Baby Gap

Size 6 mo
$9.99 $20

$5.99 40% off with

Old Navy Size 12-18 mo
Price Drop
View Product: Old Navy Size 12-18 mo

Old Navy

Size 12-18 mo
$10.99 $15

$6.59 40% off with

OshKosh B'gosh Size 12 mo
Price Drop
View Product: OshKosh B'gosh Size 12 mo

OshKosh B'gosh

Size 12 mo
$9.99 $21

$5.99 40% off with

UV Skinz Size 2T
Price Drop
View Product: UV Skinz Size 2T

UV Skinz

Size 2T
$8.99 $26

$5.39 40% off with

Hema Size 0-3 mo
Price Drop
View Product: Hema Size 0-3 mo

Hema

Size 0-3 mo
$9.99 $20

$4.99 50% off with

Baby Gap Size 0-3 mo
Price Drop
View Product: Baby Gap Size 0-3 mo

Baby Gap

Size 0-3 mo
$6.99 $20

$3.49 50% off with

Koala Baby Size Newborn
Price Drop
View Product: Koala Baby Size Newborn

Koala Baby

Size Newborn
$7.99 $20

$3.99 50% off with

Baby Gap Size 3-6 mo
Price Drop
View Product: Baby Gap Size 3-6 mo

Baby Gap

Size 3-6 mo
$6.99 $20

$3.49 50% off with

Kitestrings Size 6-9 mo
Price Drop
View Product: Kitestrings Size 6-9 mo

Kitestrings

Size 6-9 mo
$5.99 $34

$2.99 50% off with

Carter's Size 6-9 mo
Price Drop
View Product: Carter's Size 6-9 mo

Carter's

Size 6-9 mo
$11.99 $24

$5.99 50% off with

Baby Gap Size 0-3 mo
Price Drop
View Product: Baby Gap Size 0-3 mo

Baby Gap

Size 0-3 mo
$7.99 $20

$3.99 50% off with

Carter's Size 6 mo
Price Drop
View Product: Carter's Size 6 mo

Carter's

Size 6 mo
$7.99 $24

$3.99 50% off with

Sesame Street Size 0-3 mo
Price Drop
View Product: Sesame Street Size 0-3 mo

Sesame Street

Size 0-3 mo
$10.99 $31

$5.49 50% off with

Gymboree Size 3-6 mo
Price Drop
View Product: Gymboree Size 3-6 mo

Gymboree

Size 3-6 mo
$10.99 $22

$5.49 50% off with

Gymboree Size 12-18 mo
Price Drop
View Product: Gymboree Size 12-18 mo

Gymboree

Size 12-18 mo
$10.99 $25

$5.49 50% off with

Page of 1