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Boys' activewear tops are ideal for the busy little men in your life. You'll never pay retail for these hard-wearing apparel items again when you shop at thredUP.

TopsRemove filter12Remove filter
19 items
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    Babolat Active T-Shirt (view 2)Babolat Active T-Shirt (view 1)
    View Product: Babolat Active T-Shirt

    Babolat

    Active T-Shirt
    Size 12
    $18.99
    61% off estimated retail
    Babolat Active T-Shirt (view 2)Babolat Active T-Shirt (view 1)
    View Product: Babolat Active T-Shirt

    Babolat

    Active T-Shirt
    Size 12
    $16.99
    65% 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 12
    $8.99
    43% 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 12
    $14.99
    63% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Air Jordan Active T-Shirt (view 2)Air Jordan Active T-Shirt (view 1)
    View Product: Air Jordan Active T-Shirt

    Air Jordan

    Active T-Shirt
    Size 12
    $40.99
    65% off estimated retail
    Air Jordan Active T-Shirt (view 2)Air Jordan Active T-Shirt (view 1)
    View Product: Air Jordan Active T-Shirt

    Air Jordan

    Active T-Shirt
    Size 12
    $23.99
    66% off estimated retail
    Reebok Active T-Shirt (view 2)Reebok Active T-Shirt (view 1)
    View Product: Reebok Active T-Shirt

    Reebok

    Active T-Shirt
    Size 12
    $16.99
    61% off estimated retail
    H&M Active T-Shirt (view 2)H&M Active T-Shirt (view 1)
    View Product: H&M Active T-Shirt

    H&M

    Active T-Shirt
    Size 12
    $11.99
    56% off estimated retail
    Descente Active T-Shirt (view 2)Descente Active T-Shirt (view 1)
    View Product: Descente Active T-Shirt

    Descente

    Active T-Shirt
    Size 12
    $28.99 $20.29 30% off with code HOTDEAL
    54% off estimated retail
    Ivivva Active T-Shirt (view 2)Ivivva Active T-Shirt (view 1)
    View Product: Ivivva Active T-Shirt

    Ivivva

    Active T-Shirt
    Size 12
    $23.99 $15.59 35% off with code HOTDEAL
    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 12
    $21.99 $16.49 25% off with code HOTDEAL
    56% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)Flawed Gem
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 12
    $20.99 $15.74 25% off with code HOTDEAL
    66% off estimated retail
    C9 By Champion Active T-Shirt (view 2)C9 By Champion Active T-Shirt (view 1)
    View Product: C9 By Champion Active T-Shirt

    C9 By Champion

    Active T-Shirt
    Size 12
    $16.99 $13.59 20% off with code HOTDEAL
    48% off estimated retail
    Momentum Active T-Shirt (view 2)Momentum Active T-Shirt (view 1)
    View Product: Momentum Active T-Shirt

    Momentum

    Active T-Shirt
    Size 12
    $17.99 $12.59 30% off with code HOTDEAL
    61% off estimated retail
    Jordan Active T-Shirt (view 2)Jordan Active T-Shirt (view 1)
    View Product: Jordan Active T-Shirt

    Jordan

    Active T-Shirt
    Size 12
    $21.99 $15.39 30% off with code HOTDEAL
    72% off estimated retail
    Assorted Brands Active T-Shirt (view 2)Assorted Brands Active T-Shirt (view 1)
    View Product: Assorted Brands Active T-Shirt

    Assorted Brands

    Active T-Shirt
    Size 12
    $18.99 $15.19 20% off with code HOTDEAL
    54% off estimated retail
    Rivalry Threads Active T-Shirt (view 2)Rivalry Threads Active T-Shirt (view 1)Price Drop
    View Product: Rivalry Threads Active T-Shirt

    Rivalry Threads

    Active T-Shirt
    Size 12
    $10.99 $8.79 20% off with code HOTDEAL
    64% off estimated retail
    Bixby Nomad Active T-Shirt (view 2)Bixby Nomad Active T-Shirt (view 1)Price Drop
    View Product: Bixby Nomad Active T-Shirt

    Bixby Nomad

    Active T-Shirt
    Size 12
    $13.99 $7.69 45% off with code HOTDEAL
    63% off estimated retail
    Galaxy by Harvic Active T-Shirt (view 2)Galaxy by Harvic Active T-Shirt (view 1)New With Tags
    View Product: Galaxy by Harvic Active T-Shirt

    Galaxy by Harvic

    Active T-Shirt
    Size 12
    $24.99 $12.50 50% off with code HOTDEAL
    85% off estimated retail
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