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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.

445 items·
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Filtering byBoys: swimwear
    Nickelodeon Size 3T
    Price Drop
    View Product: Nickelodeon Size 3T

    Nickelodeon

    Size 3T
    $8.99 $19

    $6.29 30% off with

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

    Baby Gap

    Size 6 mo
    $9.99 $20

    $6.99 30% off with

    Speedo Size 4
    Price Drop
    View Product: Speedo Size 4

    Speedo

    Size 4
    $9.99 $19

    $6.99 30% off with

    Sand N Sun Size 18 mo
    Price Drop
    View Product: Sand N Sun Size 18 mo

    Sand N Sun

    Size 18 mo
    $12.99 $20

    $9.09 30% off with

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

    Baby Gap

    Size 0-3 mo
    $11.99 $25

    $8.39 30% off with

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

    Baby Gap

    Size 0-3 mo
    $10.99 $20

    $7.69 30% off with

    Baby Gap Size 6-12 mo
    Rare Find
    View Product: Baby Gap Size 6-12 mo

    Baby Gap

    Size 6-12 mo
    $9.99 $20

    $6.99 30% off with

    Op Size Large youth
    View Product: Op Size Large youth

    Op

    Size Large youth
    $11.99 $15

    $8.39 30% off with

    Carter's Size 9 mo
    Rare Find
    View Product: Carter's Size 9 mo

    Carter's

    Size 9 mo
    $10.99 $24

    $7.69 30% off with

    Trunks Surf & Swim Co. Size 2
    Price Drop
    View Product: Trunks Surf & Swim Co. Size 2

    Trunks Surf & Swim Co.

    Size 2
    $10.99 $27

    $7.69 30% off with

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

    Old Navy

    Size 12-18 mo
    $10.99 $15

    $7.69 30% off with

    Carter's Size 12 mo
    Rare Find
    View Product: Carter's Size 12 mo

    Carter's

    Size 12 mo
    $13.99 $28

    $9.79 30% off with

    Sun Protection Zone Size X-Small youth
    New with tags
    View Product: Sun Protection Zone Size X-Small youth

    Sun Protection Zone

    Size X-Small youth
    $10.99 $18.99

    $7.69 30% off with

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

    Disney

    Size 12 mo
    $9.99 $20

    $4.99 50% off with

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

    Assorted Brands

    Size 6 mo
    $15.99 $41

    $7.99 50% off with

    Body Glove Size X-Large youth
    View Product: Body Glove Size X-Large youth

    Body Glove

    Size X-Large youth
    $17.99 $38

    $12.59 30% off with

    Baby Gap Size 3-6 mo
    Rare Find
    View Product: Baby Gap Size 3-6 mo

    Baby Gap

    Size 3-6 mo
    $9.99 $20

    $6.99 30% off with

    Assorted Brands Size 2
    New with tags
    View Product: Assorted Brands Size 2

    Assorted Brands

    Size 2
    $9.99 $20

    $6.99 30% off with

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

    Baby Gap

    Size 3-6 mo
    $9.99 $20

    $6.99 30% off with

    Gap Kids Size X-Large kids
    View Product: Gap Kids Size X-Large kids

    Gap Kids

    Size X-Large kids
    $12.99 $25

    $9.09 30% off with

    Radicool Size 2
    View Product: Radicool Size 2

    Radicool

    Size 2
    $18.99 $31

    $13.29 30% off with

    Radicool Size 2
    View Product: Radicool Size 2

    Radicool

    Size 2
    $18.99 $31

    $13.29 30% off with

    Unbranded Size Large kids
    Price Drop
    View Product: Unbranded Size Large kids

    Unbranded

    Size Large kids
    $10.99 $31

    $6.59 40% off with

    Assorted Brands Size 3T
    View Product: Assorted Brands Size 3T

    Assorted Brands

    Size 3T
    $13.99 $26

    $9.79 30% off with

    Hanna Andersson Size 140 cm
    Price Drop
    View Product: Hanna Andersson Size 140 cm

    Hanna Andersson

    Size 140 cm
    $9.99 $38

    $4.99 50% off with

    Assorted Brands Size 10
    New with tags
    View Product: Assorted Brands Size 10

    Assorted Brands

    Size 10
    $14.99 $31

    $10.49 30% off with

    Assorted Brands Size Medium youth
    New with tags
    View Product: Assorted Brands Size Medium youth

    Assorted Brands

    Size Medium youth
    $16.99 $31

    $11.89 30% off with

    Assorted Brands Size Medium youth
    New with tags
    View Product: Assorted Brands Size Medium youth

    Assorted Brands

    Size Medium youth
    $16.99 $31

    $11.89 30% off with

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

    Hanna Andersson

    Size 80 cm
    $15.99 $28

    $11.19 30% off with

    Assorted Brands Size 8
    Price Drop
    View Product: Assorted Brands Size 8

    Assorted Brands

    Size 8
    $27.99 $61

    $13.99 50% off with

    Baby Gap Size 12-18 mo
    View Product: Baby Gap Size 12-18 mo

    Baby Gap

    Size 12-18 mo
    $13.99 $20

    $9.79 30% off with

    Janie and Jack Size 6-12 mo
    View Product: Janie and Jack Size 6-12 mo

    Janie and Jack

    Size 6-12 mo
    $13.99 $29

    $9.79 30% off with

    OshKosh B'gosh Size 9 mo
    Price Drop
    View Product: OshKosh B'gosh Size 9 mo

    OshKosh B'gosh

    Size 9 mo
    $22.99 $41

    $16.09 30% off with

    Hanna Andersson Size 150 cm
    View Product: Hanna Andersson Size 150 cm

    Hanna Andersson

    Size 150 cm
    $23.99 $38

    $16.79 30% off with

    Jumping Beans Size 4
    View Product: Jumping Beans Size 4

    Jumping Beans

    Size 4
    $14.99 $26

    $10.49 30% off with

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

    Hanna Andersson

    Size 60 cm
    $16.99 $38

    $8.49 50% off with

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

    Assorted Brands

    Size X-Small youth
    $32.99 $61

    $23.09 30% off with

    Unbranded Size Medium kids
    View Product: Unbranded Size Medium kids

    Unbranded

    Size Medium kids
    $15.99 $31

    $11.19 30% off with

    Gymboree Size 12-18 mo
    Rare Find
    View Product: Gymboree Size 12-18 mo

    Gymboree

    Size 12-18 mo
    $13.99 $25

    $9.79 30% off with

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

    Baby Gap

    Size 3-6 mo
    $9.99 $20

    $6.99 30% off with

    Lands' End Size Large kids
    View Product: Lands' End Size Large kids

    Lands' End

    Size Large kids
    $13.99 $25

    $9.79 30% off with

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

    Gymboree

    Size 3-6 mo
    $15.99 $37

    $7.99 50% off with

    Carter's Size 4T
    Price Drop
    View Product: Carter's Size 4T

    Carter's

    Size 4T
    $11.99 $28

    $7.19 40% off with

    Appaman Size 12-18 mo
    View Product: Appaman Size 12-18 mo

    Appaman

    Size 12-18 mo
    $9.99 $26

    $6.99 30% off with

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

    Carter's

    Size 3 mo
    $10.99 $24

    $7.69 30% off with

    UV Skinz Size 12-18 mo
    Price Drop
    View Product: UV Skinz Size 12-18 mo

    UV Skinz

    Size 12-18 mo
    $9.99 $26

    $6.99 30% off with

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

    OshKosh B'gosh

    Size 12 mo
    $9.99 $21

    $6.99 30% off with

    L.L.Bean Size 14
    Price Drop
    View Product: L.L.Bean Size 14

    L.L.Bean

    Size 14
    $14.99 $31

    $8.99 40% off with

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

    Cat & Jack

    Size 6-9 mo
    $15.99 $20

    $11.19 30% off with

    Nickelodeon Size Large youth
    View Product: Nickelodeon Size Large youth

    Nickelodeon

    Size Large youth
    $30.99 $46

    $21.69 30% off with

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