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Are you in the market for some fresh and fun workout gear for your little guy? At thredUP, we offer an excellent selection of boys' workout shorts. Shop now to find cool styles that will make your little guy even more excited to get active.

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    Under Armour Athletic Shorts (view 2)Under Armour Athletic Shorts (view 1)
    View Product: Under Armour Athletic Shorts

    Under Armour

    Athletic Shorts
    Size Medium youth
    $15.99
    40% off estimated retail
    Puma Athletic Shorts (view 2)Puma Athletic Shorts (view 1)
    View Product: Puma Athletic Shorts

    Puma

    Athletic Shorts
    Size 0-3 mo
    $8.99
    40% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size X-Small kids
    $12.99
    51% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)New With Tags
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 18 mo
    $12.99
    51% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 18-24 mo
    $13.99
    48% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 8
    $12.99
    51% 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 Small youth
    $13.99
    48% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 4T
    $14.99
    44% 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 Large youth
    $15.99
    40% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Flawed Gem
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Large kids
    $11.99
    55% 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 12 mo
    $12.99
    27% 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 X-Small youth
    $14.99
    44% off estimated retail
    Active by Old Navy Athletic Shorts (view 2)Active by Old Navy Athletic Shorts (view 1)
    View Product: Active by Old Navy Athletic Shorts

    Active by Old Navy

    Athletic Shorts
    Size 8
    $10.99
    21% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium kids
    $14.99 $9.74 35% off with code THANKU
    70% off estimated retail
    Assorted Brands Athletic Shorts (view 2)Assorted Brands Athletic Shorts (view 1)
    View Product: Assorted Brands Athletic Shorts

    Assorted Brands

    Athletic Shorts
    Size Small youth
    $10.99 $8.79 20% off with code THANKU
    50% 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 24 mo
    $8.99 $7.19 20% off with code THANKU
    50% 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
    $10.99 $8.79 20% off with code THANKU
    $11
    Thereabouts Athletic Shorts (view 2)Thereabouts Athletic Shorts (view 1)
    View Product: Thereabouts Athletic Shorts

    Thereabouts

    Athletic Shorts
    Size 16
    $12.99 $9.74 25% off with code THANKU
    40% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size X-Small kids
    $13.99 $10.49 25% off with code THANKU
    58% off estimated retail
    Cougar Athletic Shorts (view 2)Cougar Athletic Shorts (view 1)
    View Product: Cougar Athletic Shorts

    Cougar

    Athletic Shorts
    Size 8
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Old Navy Athletic Shorts (view 2)Old Navy Athletic Shorts (view 1)
    View Product: Old Navy Athletic Shorts

    Old Navy

    Athletic Shorts
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    27% off estimated retail
    Speedo Athletic Shorts (view 2)Speedo Athletic Shorts (view 1)
    View Product: Speedo Athletic Shorts

    Speedo

    Athletic Shorts
    Size Small infants
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Ideology Athletic Shorts (view 2)Ideology Athletic Shorts (view 1)
    View Product: Ideology Athletic Shorts

    Ideology

    Athletic Shorts
    Size 10
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Puma Athletic Shorts (view 2)Puma Athletic Shorts (view 1)
    View Product: Puma Athletic Shorts

    Puma

    Athletic Shorts
    Size 6
    $13.99 $9.79 30% off with code THANKU
    36% off estimated retail
    A4 Athletic Shorts (view 2)A4 Athletic Shorts (view 1)
    View Product: A4 Athletic Shorts

    A4

    Athletic Shorts
    Size Small youth
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium infants
    $13.99 $9.09 35% off with code THANKU
    48% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Small kids
    $17.99 $9.89 45% off with code THANKU
    33% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium kids
    $10.99 $7.69 30% off with code THANKU
    59% 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 7
    $20.99 $12.59 40% off with code THANKU
    22% 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 X-Small youth
    $13.99 $9.09 35% off with code THANKU
    48% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 18 mo
    $13.99 $9.09 35% off with code THANKU
    48% off estimated retail
    DSG Athletic Shorts (view 2)DSG Athletic Shorts (view 1)
    View Product: DSG Athletic Shorts

    DSG

    Athletic Shorts
    Size Large kids
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Puma Athletic Shorts (view 2)Puma Athletic Shorts (view 1)
    View Product: Puma Athletic Shorts

    Puma

    Athletic Shorts
    Size 2
    $10.99 $8.79 20% off with code THANKU
    26% off estimated retail
    Active by Old Navy Athletic Shorts (view 2)Active by Old Navy Athletic Shorts (view 1)
    View Product: Active by Old Navy Athletic Shorts

    Active by Old Navy

    Athletic Shorts
    Size 8
    $9.99 $7.99 20% off with code THANKU
    28% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium tots
    $10.99 $8.24 25% off with code THANKU
    59% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Flawed Gem
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Small infants
    $9.99 $7.49 25% off with code THANKU
    63% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Large infants
    $10.99 $8.24 25% off with code THANKU
    59% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium kids
    $10.99 $8.24 25% off with code THANKU
    59% off estimated retail
    Zella Athletic Shorts (view 2)Zella Athletic Shorts (view 1)
    View Product: Zella Athletic Shorts

    Zella

    Athletic Shorts
    Size 10
    $10.99 $8.79 20% off with code THANKU
    31% 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 24 mo
    $11.99 $7.79 35% off with code THANKU
    33% off estimated retail
    Assorted Brands Athletic Shorts (view 2)Assorted Brands Athletic Shorts (view 1)Rare Find
    View Product: Assorted Brands Athletic Shorts

    Assorted Brands

    Athletic Shorts
    Size Medium kids
    $7.99 $6.39 20% off with code THANKU
    63% 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 X-Small youth
    $14.99 $8.99 40% off with code THANKU
    44% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 6 mo
    $12.99 $8.44 35% off with code THANKU
    51% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size X-Small youth
    $10.99 $7.69 30% off with code THANKU
    59% off estimated retail
    Active by Old Navy Athletic Shorts (view 2)Active by Old Navy Athletic Shorts (view 1)Price Drop
    View Product: Active by Old Navy Athletic Shorts

    Active by Old Navy

    Athletic Shorts
    Size 8
    $9.99 $7.99 20% off with code THANKU
    28% off estimated retail
    Unbranded Athletic Shorts (view 2)Unbranded Athletic Shorts (view 1)Price Drop
    View Product: Unbranded Athletic Shorts

    Unbranded

    Athletic Shorts
    Size 24 mo
    $6.99 $5.59 20% off with code THANKU
    53% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium infants
    $14.99 $9.74 35% off with code THANKU
    44% off estimated retail
    Hurley Athletic Shorts (view 2)Hurley Athletic Shorts (view 1)Price Drop
    View Product: Hurley Athletic Shorts

    Hurley

    Athletic Shorts
    Size 12 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    JACK Athletic Shorts (view 2)JACK Athletic Shorts (view 1)
    View Product: JACK Athletic Shorts

    JACK

    Athletic Shorts
    Size Small kids
    $7.99 $6.39 20% off with code THANKU
    11% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium infants
    $11.99 $8.39 30% off with code THANKU
    55% off estimated retail
    Capelli Sport Athletic Shorts (view 2)Capelli Sport Athletic Shorts (view 1)Price Drop
    View Product: Capelli Sport Athletic Shorts

    Capelli Sport

    Athletic Shorts
    Size 4
    $11.99 $8.39 30% off with code THANKU
    47% off estimated retail
    Active by Old Navy Athletic Shorts (view 2)Active by Old Navy Athletic Shorts (view 1)
    View Product: Active by Old Navy Athletic Shorts

    Active by Old Navy

    Athletic Shorts
    Size 14
    $8.99 $7.19 20% off with code THANKU
    35% off estimated retail
    Unbranded Athletic Shorts (view 2)Unbranded Athletic Shorts (view 1)Price Drop
    View Product: Unbranded Athletic Shorts

    Unbranded

    Athletic Shorts
    Size 16
    $10.99 $8.79 20% off with code THANKU
    50% off estimated retail
    Athleta Athletic Shorts (view 2)Athleta Athletic Shorts (view 1)Price Drop
    View Product: Athleta Athletic Shorts

    Athleta

    Athletic Shorts
    Size 8
    $11.99 $7.19 40% off with code THANKU
    63% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Small infants
    $10.99 $7.69 30% off with code THANKU
    59% off estimated retail
    Baby Gap Athletic Shorts (view 2)Baby Gap Athletic Shorts (view 1)Price Drop
    View Product: Baby Gap Athletic Shorts

    Baby Gap

    Athletic Shorts
    Size 6-12 mo
    $8.99 $7.19 20% off with code THANKU
    35% off estimated retail
    Carter's Athletic Shorts (view 2)Carter's Athletic Shorts (view 1)Price Drop
    View Product: Carter's Athletic Shorts

    Carter's

    Athletic Shorts
    Size 3 mo
    $8.99 $7.19 20% off with code THANKU
    30% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size Medium infants
    $9.99 $7.49 25% off with code THANKU
    63% off estimated retail
    Azarhia Athletic Shorts (view 2)Azarhia Athletic Shorts (view 1)Price Drop
    View Product: Azarhia Athletic Shorts

    Azarhia

    Athletic Shorts
    Size Medium youth
    $8.99 $6.74 25% off with code THANKU
    72% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 8
    $8.99 $7.19 20% off with code THANKU
    66% off estimated retail
    Nike Athletic Shorts (view 2)Nike Athletic Shorts (view 1)Price Drop
    View Product: Nike Athletic Shorts

    Nike

    Athletic Shorts
    Size 6-9 mo
    $8.99 $6.74 25% off with code THANKU
    66% off estimated retail
    Kids Headquarters Athletic Shorts (view 2)Kids Headquarters Athletic Shorts (view 1)Price Drop
    View Product: Kids Headquarters Athletic Shorts

    Kids Headquarters

    Athletic Shorts
    Size 0-3 mo
    $7.99 $6.39 20% off with code THANKU
    $7
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