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Boys' tops come in such a variety of styles and colors, they're the perfect way to start planning an entire outfit. Shop at thredUP when you're looking for an excellent selection of like-new boys' tops that range from casual to dressy and at prices up to 90% off estimated retail.

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64 items
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    Vineyard Vines Long Sleeve T-Shirt (view 2)Vineyard Vines Long Sleeve T-Shirt (view 1)
    View Product: Vineyard Vines Long Sleeve T-Shirt

    Vineyard Vines

    Long Sleeve T-Shirt
    Size 18
    $59.99
    47% off estimated retail
    Vineyard Vines Long Sleeve T-Shirt (view 2)Vineyard Vines Long Sleeve T-Shirt (view 1)
    View Product: Vineyard Vines Long Sleeve T-Shirt

    Vineyard Vines

    Long Sleeve T-Shirt
    Size 18
    $20.99
    37% 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 18
    $23.99
    60% off estimated retail
    Polo by Ralph Lauren Pullover Sweater (view 2)Polo by Ralph Lauren Pullover Sweater (view 1)
    View Product: Polo by Ralph Lauren Pullover Sweater

    Polo by Ralph Lauren

    Pullover Sweater
    Size 18
    $25.99
    67% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Brooks Brothers Long Sleeve Button-Down Shirt (view 2)Brooks Brothers Long Sleeve Button-Down Shirt (view 1)
    View Product: Brooks Brothers Long Sleeve Button-Down Shirt

    Brooks Brothers

    Long Sleeve Button-Down Shirt
    Size 18
    $17.99
    73% off estimated retail
    CALVIN KLEIN JEANS Short Sleeve Polo (view 2)CALVIN KLEIN JEANS Short Sleeve Polo (view 1)
    View Product: CALVIN KLEIN JEANS Short Sleeve Polo

    CALVIN KLEIN JEANS

    Short Sleeve Polo
    Size 18
    $14.99
    44% off estimated retail
    Genuine Merchandise by Team Athletics Short Sleeve T-Shirt (view 2)Genuine Merchandise by Team Athletics Short Sleeve T-Shirt (view 1)
    View Product: Genuine Merchandise by Team Athletics Short Sleeve T-Shirt

    Genuine Merchandise by Team Athletics

    Short Sleeve T-Shirt
    Size 18
    $8.99
    63% off estimated retail
    Adidas Short Sleeve T-Shirt (view 2)Adidas Short Sleeve T-Shirt (view 1)
    View Product: Adidas Short Sleeve T-Shirt

    Adidas

    Short Sleeve T-Shirt
    Size 18
    $12.99
    45% off estimated retail
    Marvel Long Sleeve T-Shirt (view 2)Marvel Long Sleeve T-Shirt (view 1)
    View Product: Marvel Long Sleeve T-Shirt

    Marvel

    Long Sleeve T-Shirt
    Size 18
    $29.99
    47% off estimated retail
    Catimini Sweatshirt (view 2)Catimini Sweatshirt (view 1)
    View Product: Catimini Sweatshirt

    Catimini

    Sweatshirt
    Size 18
    $42.99
    74% off estimated retail
    Vineyard Vines Short Sleeve Button-Down Shirt (view 2)Vineyard Vines Short Sleeve Button-Down Shirt (view 1)
    View Product: Vineyard Vines Short Sleeve Button-Down Shirt

    Vineyard Vines

    Short Sleeve Button-Down Shirt
    Size 18
    $22.99
    56% 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 18
    $21.99
    61% off estimated retail
    REI Long Sleeve Button-Down Shirt (view 2)REI Long Sleeve Button-Down Shirt (view 1)
    View Product: REI Long Sleeve Button-Down Shirt

    REI

    Long Sleeve Button-Down Shirt
    Size 18
    $20.99
    69% off estimated retail
    FORTNITE Pullover Hoodie (view 2)FORTNITE Pullover Hoodie (view 1)
    View Product: FORTNITE Pullover Hoodie

    FORTNITE

    Pullover Hoodie
    Size 18
    $17.99 $13.49 25% off with code HOTDEAL
    65% off estimated retail
    Vineyard Vines Long Sleeve T-Shirt (view 2)Vineyard Vines Long Sleeve T-Shirt (view 1)
    View Product: Vineyard Vines Long Sleeve T-Shirt

    Vineyard Vines

    Long Sleeve T-Shirt
    Size 18
    $16.99 $11.89 30% off with code HOTDEAL
    40% off estimated retail
    Vineyard Vines Long Sleeve T-Shirt (view 2)Vineyard Vines Long Sleeve T-Shirt (view 1)Flawed Gem
    View Product: Vineyard Vines Long Sleeve T-Shirt

    Vineyard Vines

    Long Sleeve T-Shirt
    Size 18
    $54.99 $32.99 40% off with code HOTDEAL
    52% off estimated retail
    Vineyard Vines Long Sleeve T-Shirt (view 2)Vineyard Vines Long Sleeve T-Shirt (view 1)
    View Product: Vineyard Vines Long Sleeve T-Shirt

    Vineyard Vines

    Long Sleeve T-Shirt
    Size 18
    $18.99 $13.29 30% off with code HOTDEAL
    44% off estimated retail
    NFL Active T-Shirt (view 2)NFL Active T-Shirt (view 1)
    View Product: NFL Active T-Shirt

    NFL

    Active T-Shirt
    Size 18
    $17.99 $14.39 20% off with code HOTDEAL
    69% off estimated retail
    Adidas Pullover Hoodie (view 2)Adidas Pullover Hoodie (view 1)
    View Product: Adidas Pullover Hoodie

    Adidas

    Pullover Hoodie
    Size 18
    $21.99 $13.19 40% off with code HOTDEAL
    67% off estimated retail
    Puma Active T-Shirt (view 2)Puma Active T-Shirt (view 1)
    View Product: Puma Active T-Shirt

    Puma

    Active T-Shirt
    Size 18
    $9.99 $7.99 20% off with code HOTDEAL
    69% off estimated retail
    Gap Pullover Hoodie (view 2)Gap Pullover Hoodie (view 1)
    View Product: Gap Pullover Hoodie

    Gap

    Pullover Hoodie
    Size 18
    $22.99 $17.24 25% off with code HOTDEAL
    55% off estimated retail
    Vineyard Vines Long Sleeve T-Shirt (view 2)Vineyard Vines Long Sleeve T-Shirt (view 1)
    View Product: Vineyard Vines Long Sleeve T-Shirt

    Vineyard Vines

    Long Sleeve T-Shirt
    Size 18
    $17.99 $12.59 30% off with code HOTDEAL
    48% off estimated retail
    French Toast Long Sleeve Button-Down Shirt (view 2)French Toast Long Sleeve Button-Down Shirt (view 1)
    View Product: French Toast Long Sleeve Button-Down Shirt

    French Toast

    Long Sleeve Button-Down Shirt
    Size 18
    $8.99 $7.19 20% off with code HOTDEAL
    63% off estimated retail
    DSG Long Sleeve T-Shirt (view 2)DSG Long Sleeve T-Shirt (view 1)
    View Product: DSG Long Sleeve T-Shirt

    DSG

    Long Sleeve T-Shirt
    Size 18
    $13.99 $11.19 20% off with code HOTDEAL
    50% off estimated retail
    Threads 4 Thought Short Sleeve T-Shirt (view 2)Threads 4 Thought Short Sleeve T-Shirt (view 1)
    View Product: Threads 4 Thought Short Sleeve T-Shirt

    Threads 4 Thought

    Short Sleeve T-Shirt
    Size 18 Husky
    $8.99 $7.19 20% off with code HOTDEAL
    63% off estimated retail
    Mojang Short Sleeve T-Shirt (view 2)Mojang Short Sleeve T-Shirt (view 1)
    View Product: Mojang Short Sleeve T-Shirt

    Mojang

    Short Sleeve T-Shirt
    Size 18
    $15.99 $12.79 20% off with code HOTDEAL
    40% off estimated retail
    Ralph Lauren Long Sleeve Button-Down Shirt (view 2)Ralph Lauren Long Sleeve Button-Down Shirt (view 1)
    View Product: Ralph Lauren Long Sleeve Button-Down Shirt

    Ralph Lauren

    Long Sleeve Button-Down Shirt
    Size 18
    $15.99 $11.19 30% off with code HOTDEAL
    79% off estimated retail
    NBA Pullover Hoodie (view 2)NBA Pullover Hoodie (view 1)
    View Product: NBA Pullover Hoodie

    NBA

    Pullover Hoodie
    Size 18
    $13.99 $11.19 20% off with code HOTDEAL
    45% off estimated retail
    Robert Graham Long Sleeve Button-Down Shirt (view 2)Robert Graham Long Sleeve Button-Down Shirt (view 1)
    View Product: Robert Graham Long Sleeve Button-Down Shirt

    Robert Graham

    Long Sleeve Button-Down Shirt
    Size 18
    $58.99 $38.34 35% off with code HOTDEAL
    72% off estimated retail
    Thomas Dean Long Sleeve Button-Down Shirt (view 2)Thomas Dean Long Sleeve Button-Down Shirt (view 1)
    View Product: Thomas Dean Long Sleeve Button-Down Shirt

    Thomas Dean

    Long Sleeve Button-Down Shirt
    Size 18
    $14.99 $11.99 20% off with code HOTDEAL
    76% off estimated retail
    Old Navy Short Sleeve T-Shirt (view 2)Old Navy Short Sleeve T-Shirt (view 1)
    View Product: Old Navy Short Sleeve T-Shirt

    Old Navy

    Short Sleeve T-Shirt
    Size 18
    $11.99 $9.59 20% off with code HOTDEAL
    37% off estimated retail
    Wonder Nation Short Sleeve T-Shirt (view 2)Wonder Nation Short Sleeve T-Shirt (view 1)
    View Product: Wonder Nation Short Sleeve T-Shirt

    Wonder Nation

    Short Sleeve T-Shirt
    Size 18
    $7.99 $6.39 20% off with code HOTDEAL
    46% off estimated retail
    C9 By Champion Zip Up Hoodie (view 2)C9 By Champion Zip Up Hoodie (view 1)
    View Product: C9 By Champion Zip Up Hoodie

    C9 By Champion

    Zip Up Hoodie
    Size 18
    $18.99 $12.34 35% off with code HOTDEAL
    27% off estimated retail
    CALVIN KLEIN JEANS Long Sleeve Button-Down Shirt (view 2)CALVIN KLEIN JEANS Long Sleeve Button-Down Shirt (view 1)
    View Product: CALVIN KLEIN JEANS Long Sleeve Button-Down Shirt

    CALVIN KLEIN JEANS

    Long Sleeve Button-Down Shirt
    Size 18
    $13.99 $11.19 20% off with code HOTDEAL
    63% off estimated retail
    FILA Zip Up Hoodie (view 2)FILA Zip Up Hoodie (view 1)
    View Product: FILA Zip Up Hoodie

    FILA

    Zip Up Hoodie
    Size 18
    $21.99 $13.19 40% off with code HOTDEAL
    67% off estimated retail
    Vineyard Vines Long Sleeve Button-Down Shirt (view 2)Vineyard Vines Long Sleeve Button-Down Shirt (view 1)
    View Product: Vineyard Vines Long Sleeve Button-Down Shirt

    Vineyard Vines

    Long Sleeve Button-Down Shirt
    Size 18
    $31.99 $22.39 30% off with code HOTDEAL
    52% off estimated retail
    Wonder Nation Long Sleeve Button-Down Shirt (view 2)Wonder Nation Long Sleeve Button-Down Shirt (view 1)
    View Product: Wonder Nation Long Sleeve Button-Down Shirt

    Wonder Nation

    Long Sleeve Button-Down Shirt
    Size 18
    $15.99 $12.79 20% off with code HOTDEAL
    40% off estimated retail
    OshKosh B'gosh Short Sleeve Button-Down Shirt (view 2)OshKosh B'gosh Short Sleeve Button-Down Shirt (view 1)
    View Product: OshKosh B'gosh Short Sleeve Button-Down Shirt

    OshKosh B'gosh

    Short Sleeve Button-Down Shirt
    Size 18
    $13.99 $11.19 20% off with code HOTDEAL
    63% off estimated retail
    LeSportsac Short Sleeve T-Shirt (view 2)LeSportsac Short Sleeve T-Shirt (view 1)
    View Product: LeSportsac Short Sleeve T-Shirt

    LeSportsac

    Short Sleeve T-Shirt
    Size 18
    $12.99 $10.39 20% off with code HOTDEAL
    50% off estimated retail
    Smith's American Pullover Hoodie (view 2)Smith's American Pullover Hoodie (view 1)
    View Product: Smith's American Pullover Hoodie

    Smith's American

    Pullover Hoodie
    Size 18
    $14.99 $9.74 35% off with code HOTDEAL
    60% off estimated retail
    Sovereign Code Pullover Hoodie (view 2)Sovereign Code Pullover Hoodie (view 1)
    View Product: Sovereign Code Pullover Hoodie

    Sovereign Code

    Pullover Hoodie
    Size 18
    $18.99 $12.34 35% off with code HOTDEAL
    51% off estimated retail
    Covington Outlet Long Sleeve Polo (view 2)Covington Outlet Long Sleeve Polo (view 1)
    View Product: Covington Outlet Long Sleeve Polo

    Covington Outlet

    Long Sleeve Polo
    Size 18
    $13.99 $11.19 20% off with code HOTDEAL
    31% off estimated retail
    Wonder Nation Short Sleeve T-Shirt (view 2)Wonder Nation Short Sleeve T-Shirt (view 1)
    View Product: Wonder Nation Short Sleeve T-Shirt

    Wonder Nation

    Short Sleeve T-Shirt
    Size 18
    $10.99 $8.79 20% off with code HOTDEAL
    18% off estimated retail
    Nautica Long Sleeve Polo (view 2)Nautica Long Sleeve Polo (view 1)Price Drop
    View Product: Nautica Long Sleeve Polo

    Nautica

    Long Sleeve Polo
    Size 18
    $16.99 $13.59 20% off with code HOTDEAL
    60% off estimated retail
    Assorted Brands Short Sleeve Button-Down Shirt (view 2)Assorted Brands Short Sleeve Button-Down Shirt (view 1)
    View Product: Assorted Brands Short Sleeve Button-Down Shirt

    Assorted Brands

    Short Sleeve Button-Down Shirt
    Size 18
    $12.99 $10.39 20% off with code HOTDEAL
    66% off estimated retail
    Catimini Zip Up Hoodie (view 2)Catimini Zip Up Hoodie (view 1)
    View Product: Catimini Zip Up Hoodie

    Catimini

    Zip Up Hoodie
    Size 18
    $20.99 $12.59 40% off with code HOTDEAL
    84% off estimated retail
    Nautica Short Sleeve Polo (view 2)Nautica Short Sleeve Polo (view 1)Price Drop
    View Product: Nautica Short Sleeve Polo

    Nautica

    Short Sleeve Polo
    Size 18
    $17.99 $14.39 20% off with code HOTDEAL
    57% off estimated retail
    F.lli Campagnolo Pullover Sweater (view 2)F.lli Campagnolo Pullover Sweater (view 1)
    View Product: F.lli Campagnolo Pullover Sweater

    F.lli Campagnolo

    Pullover Sweater
    Size 18
    $18.99 $11.39 40% off with code HOTDEAL
    69% off estimated retail
    Unbranded Short Sleeve T-Shirt (view 2)Unbranded Short Sleeve T-Shirt (view 1)
    View Product: Unbranded Short Sleeve T-Shirt

    Unbranded

    Short Sleeve T-Shirt
    Size 18
    $11.99 $7.79 35% off with code HOTDEAL
    50% off estimated retail
    Pineiro Young Collection Long Sleeve Button-Down Shirt (view 2)Pineiro Young Collection Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Pineiro Young Collection Long Sleeve Button-Down Shirt

    Pineiro Young Collection

    Long Sleeve Button-Down Shirt
    Size 18
    $14.99 $7.50 50% off with code HOTDEAL
    70% off estimated retail
    Catimini Long Sleeve Button-Down Shirt (view 2)Catimini Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Catimini Long Sleeve Button-Down Shirt

    Catimini

    Long Sleeve Button-Down Shirt
    Size 18
    $16.99 $10.19 40% off with code HOTDEAL
    87% off estimated retail
    U.S. Polo Assn. Short Sleeve Polo (view 2)U.S. Polo Assn. Short Sleeve Polo (view 1)Price Drop
    View Product: U.S. Polo Assn. Short Sleeve Polo

    U.S. Polo Assn.

    Short Sleeve Polo
    Size 18
    $15.99 $9.59 40% off with code HOTDEAL
    51% off estimated retail
    Catimini Short Sleeve T-Shirt (view 2)Catimini Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Catimini Short Sleeve T-Shirt

    Catimini

    Short Sleeve T-Shirt
    Size 18
    $12.99 $7.14 45% off with code HOTDEAL
    80% off estimated retail
    Carter's Long Sleeve Henley (view 2)Carter's Long Sleeve Henley (view 1)
    View Product: Carter's Long Sleeve Henley

    Carter's

    Long Sleeve Henley
    Size 18
    $9.99 $5.99 40% off with code HOTDEAL
    80% off estimated retail
    Carter's Sweatshirt (view 2)Carter's Sweatshirt (view 1)Price Drop
    View Product: Carter's Sweatshirt

    Carter's

    Sweatshirt
    Size 18
    $10.99 $6.59 40% off with code HOTDEAL
    69% off estimated retail
    Nike Thermal Top (view 2)Nike Thermal Top (view 1)
    View Product: Nike Thermal Top

    Nike

    Thermal Top
    Size 18
    $8.99 $5.39 40% off with code HOTDEAL
    69% off estimated retail
    Catimini Short Sleeve T-Shirt (view 2)Catimini Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Catimini Short Sleeve T-Shirt

    Catimini

    Short Sleeve T-Shirt
    Size 18
    $13.99 $7.69 45% off with code HOTDEAL
    78% off estimated retail
    Jumping Beans Long Sleeve Button-Down Shirt (view 2)Jumping Beans Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Jumping Beans Long Sleeve Button-Down Shirt

    Jumping Beans

    Long Sleeve Button-Down Shirt
    Size 18
    $11.24 $6.74 40% off with code HOTDEAL
    63% off estimated retail
    Zara Short Sleeve T-Shirt (view 2)Zara Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Zara Short Sleeve T-Shirt

    Zara

    Short Sleeve T-Shirt
    Size 18
    $11.99 $7.19 40% off with code HOTDEAL
    63% off estimated retail
    Little Rebels Long Sleeve Button-Down Shirt (view 2)Little Rebels Long Sleeve Button-Down Shirt (view 1)
    View Product: Little Rebels Long Sleeve Button-Down Shirt

    Little Rebels

    Long Sleeve Button-Down Shirt
    Size 18
    $9.99 $5.49 45% off with code HOTDEAL
    59% off estimated retail
    Baby Gap Tank Top (view 2)Baby Gap Tank Top (view 1)
    View Product: Baby Gap Tank Top

    Baby Gap

    Tank Top
    Size 18
    $8.99 $5.39 40% off with code HOTDEAL
    50% off estimated retail
    Louis Louise Long Sleeve T-Shirt (view 2)Louis Louise Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Louis Louise Long Sleeve T-Shirt

    Louis Louise

    Long Sleeve T-Shirt
    Size 18
    $12.99 $7.79 40% off with code HOTDEAL
    69% off estimated retail
    Carter's Long Sleeve Polo (view 2)Carter's Long Sleeve Polo (view 1)Price Drop
    View Product: Carter's Long Sleeve Polo

    Carter's

    Long Sleeve Polo
    Size 18
    $11.24 $6.74 40% off with code HOTDEAL
    67% off estimated retail
    DDG Sport Active T-Shirt (view 2)DDG Sport Active T-Shirt (view 1)Price Drop
    View Product: DDG Sport Active T-Shirt

    DDG Sport

    Active T-Shirt
    Size 18
    $8.99 $5.39 40% off with code HOTDEAL
    46% off estimated retail
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