Cater to your boys' busy lifestyles with affordable activewear from thredUP. Enjoy steep savings with prices up to 90% off estimated retail when you shop our extensive collection of hoodies, tops, shorts, and pants.

273 items
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    Adidas Track Jacket (view 2)Adidas Track Jacket (view 1)
    View Product: Adidas Track Jacket

    Adidas

    Track Jacket
    Size 2T
    $12.99
    51% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 2T
    $11.99
    55% off estimated retail
    Crunch Pullover Hoodie (view 2)Crunch Pullover Hoodie (view 1)
    View Product: Crunch Pullover Hoodie

    Crunch

    Pullover Hoodie
    Size 2T
    $14.99
    13% off estimated retail
    Old Navy Zip Up Hoodie (view 2)Old Navy Zip Up Hoodie (view 1)
    View Product: Old Navy Zip Up Hoodie

    Old Navy

    Zip Up Hoodie
    Size 2T
    $10.99
    50% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Arctix Snow Pants With Bib (view 2)Arctix Snow Pants With Bib (view 1)
    View Product: Arctix Snow Pants With Bib

    Arctix

    Snow Pants With Bib
    Size 4T
    $16.99
    40% off estimated retail
    Hurley Active Pants (view 2)Hurley Active Pants (view 1)
    View Product: Hurley Active Pants

    Hurley

    Active Pants
    Size 4T
    $12.99
    51% off estimated retail
    Marvel Pullover Hoodie (view 2)Marvel Pullover Hoodie (view 1)
    View Product: Marvel Pullover Hoodie

    Marvel

    Pullover Hoodie
    Size 2T
    $17.99
    48% off estimated retail
    Rylee + Cru Sweatpants (view 2)Rylee + Cru Sweatpants (view 1)
    View Product: Rylee + Cru Sweatpants

    Rylee + Cru

    Sweatpants
    Size 2T
    $12.99
    60% off estimated retail
    OshKosh B'gosh Athletic Shorts (view 2)OshKosh B'gosh Athletic Shorts (view 1)
    View Product: OshKosh B'gosh Athletic Shorts

    OshKosh B'gosh

    Athletic Shorts
    Size 2T
    $10.99
    35% off estimated retail
    Under Armour Athletic Shorts (view 2)Under Armour Athletic Shorts (view 1)
    View Product: Under Armour Athletic Shorts

    Under Armour

    Athletic Shorts
    Size 2T
    $10.99
    44% off estimated retail
    Cat & Jack Sweatpants (view 2)Cat & Jack Sweatpants (view 1)
    View Product: Cat & Jack Sweatpants

    Cat & Jack

    Sweatpants
    Size 4T
    $8.99
    20% off estimated retail
    Gap Fit Zip Up Hoodie (view 2)Gap Fit Zip Up Hoodie (view 1)
    View Product: Gap Fit Zip Up Hoodie

    Gap Fit

    Zip Up Hoodie
    Size 2T
    $13.99
    61% off estimated retail
    Under Armour Active T-Shirt (view 2)Under Armour Active T-Shirt (view 1)
    View Product: Under Armour Active T-Shirt

    Under Armour

    Active T-Shirt
    Size 4T
    $15.99
    52% off estimated retail
    Marvel Athletic Shorts (view 2)Marvel Athletic Shorts (view 1)New With Tags
    View Product: Marvel Athletic Shorts

    Marvel

    Athletic Shorts
    Size 4T
    $8.99
    50% off estimated retail
    Air Jordan Athletic Shorts (view 2)Air Jordan Athletic Shorts (view 1)
    View Product: Air Jordan Athletic Shorts

    Air Jordan

    Athletic Shorts
    Size 2T
    $15.99
    44% off estimated retail
    EZPZ Easy Peasy Sweatpants (view 2)EZPZ Easy Peasy Sweatpants (view 1)
    View Product: EZPZ Easy Peasy Sweatpants

    EZPZ Easy Peasy

    Sweatpants
    Size 2T
    $41.99
    38% off estimated retail
    Champion Active T-Shirt (view 2)Champion Active T-Shirt (view 1)
    View Product: Champion Active T-Shirt

    Champion

    Active T-Shirt
    Size 2T
    $12.99
    25% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 2T
    $13.99
    48% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 4T
    $15.99
    52% off estimated retail
    Moncler Teddy Zip Up Hoodie (view 2)Moncler Teddy Zip Up Hoodie (view 1)Flawed Gem
    View Product: Moncler Teddy Zip Up Hoodie

    Moncler

    Teddy Zip Up Hoodie
    Size 2T
    $46.99
    84% off estimated retail
    Jurassic World Sweatpants (view 2)Jurassic World Sweatpants (view 1)
    View Product: Jurassic World Sweatpants

    Jurassic World

    Sweatpants
    Size 4T
    $20.99
    37% off estimated retail
    Nike Track Pants (view 2)Nike Track Pants (view 1)
    View Product: Nike Track Pants

    Nike

    Track Pants
    Size 2T
    $13.99
    48% off estimated retail
    Nike Sweatpants (view 2)Nike Sweatpants (view 1)Flawed Gem
    View Product: Nike Sweatpants

    Nike

    Sweatpants
    Size 2T
    $20.99
    41% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 4T
    $16.99
    50% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 4T
    $16.99
    52% off estimated retail
    Nike Track Jacket (view 2)Nike Track Jacket (view 1)
    View Product: Nike Track Jacket

    Nike

    Track Jacket
    Size 2T
    $19.99
    60% off estimated retail
    L.L.Bean Track Pants (view 2)L.L.Bean Track Pants (view 1)
    View Product: L.L.Bean Track Pants

    L.L.Bean

    Track Pants
    Size 2T
    $13.99
    40% off estimated retail
    Nike Track Pants (view 2)Nike Track Pants (view 1)
    View Product: Nike Track Pants

    Nike

    Track Pants
    Size 4T
    $19.99
    47% off estimated retail
    Under Armour Athletic Shorts (view 2)Under Armour Athletic Shorts (view 1)
    View Product: Under Armour Athletic Shorts

    Under Armour

    Athletic Shorts
    Size 2T
    $11.99
    38% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 4T
    $15.99
    61% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 2T
    $12.99
    51% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)New With Tags
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 4T
    $15.99
    61% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 4T
    $13.99
    58% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 4T
    $15.99
    52% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 4T
    $12.99
    51% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 4T
    $15.99
    55% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 4T
    $18.99
    52% off estimated retail
    Gap Zip Up Hoodie (view 2)Gap Zip Up Hoodie (view 1)
    View Product: Gap Zip Up Hoodie

    Gap

    Zip Up Hoodie
    Size 2T
    $14.99
    51% off estimated retail
    Jordan Athletic Shorts (view 2)Jordan Athletic Shorts (view 1)
    View Product: Jordan Athletic Shorts

    Jordan

    Athletic Shorts
    Size 4T
    $9.99
    72% off estimated retail
    Disney Zip Up Hoodie (view 2)Disney Zip Up Hoodie (view 1)
    View Product: Disney Zip Up Hoodie

    Disney

    Zip Up Hoodie
    Size 4T
    $9.99
    44% off estimated retail
    L.L.Bean Snow Pants With Bib (view 2)L.L.Bean Snow Pants With Bib (view 1)
    View Product: L.L.Bean Snow Pants With Bib

    L.L.Bean

    Snow Pants With Bib
    Size 2T
    $23.99
    50% off estimated retail
    Nike Sweatpants (view 2)Nike Sweatpants (view 1)
    View Product: Nike Sweatpants

    Nike

    Sweatpants
    Size 4T
    $21.99
    50% off estimated retail
    Nike Pullover Hoodie (view 2)Nike Pullover Hoodie (view 1)
    View Product: Nike Pullover Hoodie

    Nike

    Pullover Hoodie
    Size 2T
    $14.99
    61% off estimated retail
    Puma Athletic Shorts (view 2)Puma Athletic Shorts (view 1)Flawed Gem
    View Product: Puma Athletic Shorts

    Puma

    Athletic Shorts
    Size 4T
    $10.99
    44% off estimated retail
    Egg by Susan Lazar Zip Up Hoodie (view 2)Egg by Susan Lazar Zip Up Hoodie (view 1)
    View Product: Egg by Susan Lazar Zip Up Hoodie

    Egg by Susan Lazar

    Zip Up Hoodie
    Size 4T
    $16.99
    61% off estimated retail
    Nike Zip Up Hoodie (view 2)Nike Zip Up Hoodie (view 1)
    View Product: Nike Zip Up Hoodie

    Nike

    Zip Up Hoodie
    Size 4T
    $23.99
    51% off estimated retail
    Hurley Zip Up Hoodie (view 2)Hurley Zip Up Hoodie (view 1)
    View Product: Hurley Zip Up Hoodie

    Hurley

    Zip Up Hoodie
    Size 4T
    $22.99
    61% off estimated retail
    Nike Pullover Hoodie (view 2)Nike Pullover Hoodie (view 1)
    View Product: Nike Pullover Hoodie

    Nike

    Pullover Hoodie
    Size 4T
    $21.99
    55% off estimated retail
    Polo by Ralph Lauren Zip Up Hoodie (view 2)Polo by Ralph Lauren Zip Up Hoodie (view 1)
    View Product: Polo by Ralph Lauren Zip Up Hoodie
    Size 4T
    $18.99
    71% off estimated retail
    Marvel Athletic Shorts (view 2)Marvel Athletic Shorts (view 1)
    View Product: Marvel Athletic Shorts

    Marvel

    Athletic Shorts
    Size 2T
    $11.99
    33% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 2T
    $11.99
    59% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 2T
    $16.99
    48% off estimated retail
    Under Armour Zip Up Hoodie (view 2)Under Armour Zip Up Hoodie (view 1)
    View Product: Under Armour Zip Up Hoodie

    Under Armour

    Zip Up Hoodie
    Size 2T
    $19.99
    50% off estimated retail
    Adidas Athletic Shorts (view 2)Adidas Athletic Shorts (view 1)
    View Product: Adidas Athletic Shorts

    Adidas

    Athletic Shorts
    Size 2T
    $11.99
    44% off estimated retail
    The North Face Zip Up Hoodie (view 2)The North Face Zip Up Hoodie (view 1)
    View Product: The North Face Zip Up Hoodie

    The North Face

    Zip Up Hoodie
    Size 4T
    $34.99
    56% off estimated retail
    Cat & Jack Pullover Hoodie (view 2)Cat & Jack Pullover Hoodie (view 1)
    View Product: Cat & Jack Pullover Hoodie

    Cat & Jack

    Pullover Hoodie
    Size 2T
    $11.99
    23% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 2T
    $10.99
    63% off estimated retail
    Nike Active Tank (view 2)Nike Active Tank (view 1)
    View Product: Nike Active Tank

    Nike

    Active Tank
    Size 2T
    $9.99
    66% off estimated retail
    Assorted Brands Zip Up Hoodie (view 2)Assorted Brands Zip Up Hoodie (view 1)
    View Product: Assorted Brands Zip Up Hoodie

    Assorted Brands

    Zip Up Hoodie
    Size 4T
    $17.99
    50% off estimated retail
    Alex & Jack Zip Up Hoodie (view 2)Alex & Jack Zip Up Hoodie (view 1)
    View Product: Alex & Jack Zip Up Hoodie

    Alex & Jack

    Zip Up Hoodie
    Size 4T
    $10.99
    44% off estimated retail

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