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.

384 items
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    Primary Clothing Zip Up Hoodie (view 2)Primary Clothing Zip Up Hoodie (view 1)
    View Product: Primary Clothing Zip Up Hoodie

    Primary Clothing

    Zip Up Hoodie
    Size 12
    $21.99
    60% off estimated retail
    Rockets of Awesome Pullover Hoodie (view 2)Rockets of Awesome Pullover Hoodie (view 1)
    View Product: Rockets of Awesome Pullover Hoodie

    Rockets of Awesome

    Pullover Hoodie
    Size 12
    $15.99
    63% off estimated retail
    all in motion Zip Up Hoodie (view 2)all in motion Zip Up Hoodie (view 1)
    View Product: all in motion Zip Up Hoodie

    all in motion

    Zip Up Hoodie
    Size Large youth
    $9.99
    54% off estimated retail
    Hanna Andersson Athletic Shorts (view 2)Hanna Andersson Athletic Shorts (view 1)Flawed Gem
    View Product: Hanna Andersson Athletic Shorts

    Hanna Andersson

    Athletic Shorts
    Size 6
    $10.99
    35% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    EZPZ Easy Peasy Pullover Hoodie (view 2)EZPZ Easy Peasy Pullover Hoodie (view 1)
    View Product: EZPZ Easy Peasy Pullover Hoodie

    EZPZ Easy Peasy

    Pullover Hoodie
    Size 3T
    $43.99
    60% off estimated retail
    all in motion Athletic Shorts (view 2)all in motion Athletic Shorts (view 1)
    View Product: all in motion Athletic Shorts

    all in motion

    Athletic Shorts
    Size 14
    $7.99
    27% off estimated retail
    all in motion Zip Up Hoodie (view 2)all in motion Zip Up Hoodie (view 1)
    View Product: all in motion Zip Up Hoodie

    all in motion

    Zip Up Hoodie
    Size Large youth
    $10.99
    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 Large kids
    $15.99
    61% off estimated retail
    Hanna Andersson Zip Up Hoodie (view 2)Hanna Andersson Zip Up Hoodie (view 1)
    View Product: Hanna Andersson Zip Up Hoodie

    Hanna Andersson

    Zip Up Hoodie
    Size 10
    $23.99
    50% off estimated retail
    Vineyard Vines Athletic Shorts (view 2)Vineyard Vines Athletic Shorts (view 1)
    View Product: Vineyard Vines Athletic Shorts

    Vineyard Vines

    Athletic Shorts
    Size 18
    $36.99
    61% off estimated retail
    Hanna Andersson Pullover Hoodie (view 2)Hanna Andersson Pullover Hoodie (view 1)
    View Product: Hanna Andersson Pullover Hoodie

    Hanna Andersson

    Pullover Hoodie
    Size 6
    $18.99
    53% off estimated retail
    MEBIE BABY Fleece Pants (view 2)MEBIE BABY Fleece Pants (view 1)
    View Product: MEBIE BABY Fleece Pants

    MEBIE BABY

    Fleece Pants
    Size 18 mo
    $10.99
    31% 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 Medium kids
    $14.99
    65% off estimated retail
    Vineyard Vines Sweatpants (view 2)Vineyard Vines Sweatpants (view 1)
    View Product: Vineyard Vines Sweatpants

    Vineyard Vines

    Sweatpants
    Size Small kids
    $15.99
    55% off estimated retail
    all in motion Athletic Shorts (view 2)all in motion Athletic Shorts (view 1)
    View Product: all in motion Athletic Shorts

    all in motion

    Athletic Shorts
    Size 6
    $8.99
    18% off estimated retail
    Jo+Jax Sweatpants (view 2)Jo+Jax Sweatpants (view 1)
    View Product: Jo+Jax Sweatpants

    Jo+Jax

    Sweatpants
    Size 12
    $26.99
    44% off estimated retail
    Remade Athletic Shorts (view 2)Remade Athletic Shorts (view 1)
    View Product: Remade Athletic Shorts

    Remade

    Athletic Shorts
    Size 12
    $15.99
    70% off estimated retail
    REI Active T-Shirt (view 2)REI Active T-Shirt (view 1)
    View Product: REI Active T-Shirt

    REI

    Active T-Shirt
    Size 6
    $15.99
    63% off estimated retail
    L.L.Bean Pullover Hoodie (view 2)L.L.Bean Pullover Hoodie (view 1)
    View Product: L.L.Bean Pullover Hoodie

    L.L.Bean

    Pullover Hoodie
    Size 8
    $19.99
    54% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium kids
    $12.99
    51% off estimated retail
    Eddie Bauer Pullover Hoodie (view 2)Eddie Bauer Pullover Hoodie (view 1)
    View Product: Eddie Bauer Pullover Hoodie

    Eddie Bauer

    Pullover Hoodie
    Size 7
    $21.99
    54% off estimated retail
    Spyder Active T-Shirt (view 2)Spyder Active T-Shirt (view 1)
    View Product: Spyder Active T-Shirt

    Spyder

    Active T-Shirt
    Size Small kids
    $22.99
    69% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium youth
    $16.99
    37% off estimated retail
    Spyder Active T-Shirt (view 2)Spyder Active T-Shirt (view 1)
    View Product: Spyder Active T-Shirt

    Spyder

    Active T-Shirt
    Size Large youth
    $21.99
    73% off estimated retail
    Vineyard Vines Athletic Shorts (view 2)Vineyard Vines Athletic Shorts (view 1)
    View Product: Vineyard Vines Athletic Shorts

    Vineyard Vines

    Athletic Shorts
    Size Small kids
    $13.99
    43% off estimated retail
    Under Armour Pullover Hoodie (view 2)Under Armour Pullover Hoodie (view 1)
    View Product: Under Armour Pullover Hoodie

    Under Armour

    Pullover Hoodie
    Size Medium youth
    $26.99
    50% off estimated retail
    Gap Fit Athletic Shorts (view 2)Gap Fit Athletic Shorts (view 1)
    View Product: Gap Fit Athletic Shorts

    Gap Fit

    Athletic Shorts
    Size 4
    $9.99
    56% off estimated retail
    Athleta Track Pants (view 2)Athleta Track Pants (view 1)
    View Product: Athleta Track Pants

    Athleta

    Track Pants
    Size Medium kids
    $15.99
    51% off estimated retail
    1901 Zip Up Hoodie (view 2)1901 Zip Up Hoodie (view 1)
    View Product: 1901 Zip Up Hoodie

    1901

    Zip Up Hoodie
    Size Medium youth
    $24.99
    64% off estimated retail
    Hurley Active T-Shirt (view 2)Hurley Active T-Shirt (view 1)
    View Product: Hurley Active T-Shirt

    Hurley

    Active T-Shirt
    Size X-Large youth
    $13.99
    71% off estimated retail
    Vineyard Vines Active Pants (view 2)Vineyard Vines Active Pants (view 1)New With Tags
    View Product: Vineyard Vines Active Pants

    Vineyard Vines

    Active Pants
    Size 18
    $19.99
    69% 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 Active Pants (view 2)Nike Active Pants (view 1)
    View Product: Nike Active Pants

    Nike

    Active Pants
    Size Small infants
    $12.99
    33% off estimated retail
    Nike Pullover Hoodie (view 2)Nike Pullover Hoodie (view 1)
    View Product: Nike Pullover Hoodie

    Nike

    Pullover Hoodie
    Size 7
    $21.99
    60% 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 Small infants
    $10.99
    59% 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 Small infants
    $10.99
    59% 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 Large youth
    $19.99
    56% 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 Medium kids
    $16.99
    61% off estimated retail
    Vineyard Vines Pullover Hoodie (view 2)Vineyard Vines Pullover Hoodie (view 1)
    View Product: Vineyard Vines Pullover Hoodie

    Vineyard Vines

    Pullover Hoodie
    Size Medium kids
    $26.99
    50% 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 4
    $19.99
    60% 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 Medium kids
    $25.99
    56% off estimated retail
    Umbro Active T-Shirt (view 2)Umbro Active T-Shirt (view 1)
    View Product: Umbro Active T-Shirt

    Umbro

    Active T-Shirt
    Size 8
    $8.99
    43% off estimated retail
    DSG Active T-Shirt (view 2)DSG Active T-Shirt (view 1)
    View Product: DSG Active T-Shirt

    DSG

    Active T-Shirt
    Size 8
    $12.99
    63% off estimated retail
    Floatimini Active T-Shirt (view 2)Floatimini Active T-Shirt (view 1)New With Tags
    View Product: Floatimini Active T-Shirt

    Floatimini

    Active T-Shirt
    Size 18 mo
    $13.99
    66% off estimated retail
    Tommy Bahama Active T-Shirt (view 2)Tommy Bahama Active T-Shirt (view 1)
    View Product: Tommy Bahama Active T-Shirt

    Tommy Bahama

    Active T-Shirt
    Size 4
    $11.99
    67% 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 10
    $21.99
    56% off estimated retail
    Tommy Bahama Zip Up Hoodie (view 2)Tommy Bahama Zip Up Hoodie (view 1)
    View Product: Tommy Bahama Zip Up Hoodie

    Tommy Bahama

    Zip Up Hoodie
    Size 12 mo
    $12.99
    66% off estimated retail
    Cozii USA Pullover Hoodie (view 2)Cozii USA Pullover Hoodie (view 1)
    View Product: Cozii USA Pullover Hoodie

    Cozii USA

    Pullover Hoodie
    Size 3 mo
    $26.99
    58% off estimated retail
    Primary Clothing Zip Up Hoodie (view 2)Primary Clothing Zip Up Hoodie (view 1)
    View Product: Primary Clothing Zip Up Hoodie

    Primary Clothing

    Zip Up Hoodie
    Size 12
    $22.99
    65% off estimated retail
    Unbranded Pullover Hoodie (view 2)Unbranded Pullover Hoodie (view 1)
    View Product: Unbranded Pullover Hoodie

    Unbranded

    Pullover Hoodie
    Size Large youth
    $16.99
    61% off estimated retail
    Primary Clothing Zip Up Hoodie (view 2)Primary Clothing Zip Up Hoodie (view 1)
    View Product: Primary Clothing Zip Up Hoodie

    Primary Clothing

    Zip Up Hoodie
    Size 6
    $25.99
    61% off estimated retail
    Weatherproof Snow Pants (view 2)Weatherproof Snow Pants (view 1)
    View Product: Weatherproof Snow Pants

    Weatherproof

    Snow Pants
    Size Small kids
    $4.99
    81% off estimated retail
    Spyder Pullover Hoodie (view 2)Spyder Pullover Hoodie (view 1)
    View Product: Spyder Pullover Hoodie

    Spyder

    Pullover Hoodie
    Size Large youth
    Spyder Pullover Hoodie (view 2)Spyder Pullover Hoodie (view 1)
    View Product: Spyder Pullover Hoodie

    Spyder

    Pullover Hoodie
    Size X-Large kids
    Nike Sweatpants (view 2)Nike Sweatpants (view 1)
    View Product: Nike Sweatpants

    Nike

    Sweatpants
    Size Large youth
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size X-Small youth
    Nike Active Tank (view 2)Nike Active Tank (view 1)
    View Product: Nike Active Tank

    Nike

    Active Tank
    Size X-Large youth
    Head Pullover Hoodie (view 2)Head Pullover Hoodie (view 1)
    View Product: Head Pullover Hoodie

    Head

    Pullover Hoodie
    Size X-Small youth
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size Medium kids
    Gap Fit Track Jacket (view 2)Gap Fit Track Jacket (view 1)
    View Product: Gap Fit Track Jacket

    Gap Fit

    Track Jacket
    Size X-Small youth
    Beleaf Active T-Shirt (view 2)Beleaf Active T-Shirt (view 1)
    View Product: Beleaf Active T-Shirt

    Beleaf

    Active T-Shirt
    Size Small kids
    Grace Active T-Shirt (view 2)Grace Active T-Shirt (view 1)
    View Product: Grace Active T-Shirt

    Grace

    Active T-Shirt
    Size Small youth
    Kerrits Sweatpants (view 2)Kerrits Sweatpants (view 1)
    View Product: Kerrits Sweatpants

    Kerrits

    Sweatpants
    Size X-Large kids
    FILA Track Jacket (view 2)FILA Track Jacket (view 1)
    View Product: FILA Track Jacket

    FILA

    Track Jacket
    Size Small kids

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