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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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190 items
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    Carter's Short Sleeve T-Shirt (view 2)Carter's Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Carter's Short Sleeve T-Shirt

    Carter's

    Short Sleeve T-Shirt
    Size 18 mo
    $7.99 $4.39 45% off with code GOBIG
    46% off estimated retail
    Assorted Brands Zip Up Hoodie (view 2)Assorted Brands Zip Up Hoodie (view 1)Price Drop
    View Product: Assorted Brands Zip Up Hoodie

    Assorted Brands

    Zip Up Hoodie
    Size 3T
    $10.99 $6.04 45% off with code GOBIG
    69% off estimated retail
    Assorted Brands Short Sleeve T-Shirt (view 2)Assorted Brands Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Assorted Brands Short Sleeve T-Shirt

    Assorted Brands

    Short Sleeve T-Shirt
    Size Small youth
    $9.99 $5.49 45% off with code GOBIG
    54% off estimated retail
    Old Navy Pullover Hoodie (view 2)Old Navy Pullover Hoodie (view 1)Price Drop
    View Product: Old Navy Pullover Hoodie

    Old Navy

    Pullover Hoodie
    Size 18-24 mo
    $7.99 $4.39 45% off with code GOBIG
    55% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Disney Long Sleeve T-Shirt (view 2)Disney Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Disney Long Sleeve T-Shirt

    Disney

    Long Sleeve T-Shirt
    Size 12 mo
    $9.99 $5.49 45% off with code GOBIG
    44% off estimated retail
    Old Navy Pullover Sweater (view 2)Old Navy Pullover Sweater (view 1)Price Drop
    View Product: Old Navy Pullover Sweater

    Old Navy

    Pullover Sweater
    Size 6-12 mo
    $7.99 $4.39 45% off with code GOBIG
    50% off estimated retail
    Carter's Zip Up Hoodie (view 2)Carter's Zip Up Hoodie (view 1)Price Drop
    View Product: Carter's Zip Up Hoodie

    Carter's

    Zip Up Hoodie
    Size 9
    $10.99 $6.04 45% off with code GOBIG
    75% off estimated retail
    Coogi Short Sleeve T-Shirt (view 2)Coogi Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Coogi Short Sleeve T-Shirt

    Coogi

    Short Sleeve T-Shirt
    Size 6-9 mo
    $9.99 $5.49 45% off with code GOBIG
    66% off estimated retail
    Carter's Zip Up Hoodie (view 2)Carter's Zip Up Hoodie (view 1)Price Drop
    View Product: Carter's Zip Up Hoodie

    Carter's

    Zip Up Hoodie
    Size 9 mo
    $10.99 $6.04 45% off with code GOBIG
    62% off estimated retail
    Cuecumber Long Sleeve T-Shirt (view 2)Cuecumber Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Cuecumber Long Sleeve T-Shirt

    Cuecumber

    Long Sleeve T-Shirt
    Size 0-3 mo
    $6.99 $3.84 45% off with code GOBIG
    $7
    Utility Short Sleeve Button-Down Shirt (view 2)Utility Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Utility Short Sleeve Button-Down Shirt

    Utility

    Short Sleeve Button-Down Shirt
    Size 12 mo
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Old Navy Pullover Hoodie (view 2)Old Navy Pullover Hoodie (view 1)Price Drop
    View Product: Old Navy Pullover Hoodie

    Old Navy

    Pullover Hoodie
    Size 3-6 mo
    $10.99 $6.04 45% off with code GOBIG
    38% off estimated retail
    Disney Baby Short Sleeve Henley (view 2)Disney Baby Short Sleeve Henley (view 1)Price Drop
    View Product: Disney Baby Short Sleeve Henley

    Disney Baby

    Short Sleeve Henley
    Size 0-3 mo
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Carter's Zip Up Hoodie (view 2)Carter's Zip Up Hoodie (view 1)Price Drop
    View Product: Carter's Zip Up Hoodie

    Carter's

    Zip Up Hoodie
    Size 6 mo
    $7.99 $4.39 45% off with code GOBIG
    72% off estimated retail
    98 Angel Thermal Top (view 2)98 Angel Thermal Top (view 1)Price Drop
    View Product: 98 Angel Thermal Top

    98 Angel

    Thermal Top
    Size 6 mo
    $5.99 $3.29 45% off with code GOBIG
    33% off estimated retail
    Blue Canoe Short Sleeve T-Shirt (view 2)Blue Canoe Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Blue Canoe Short Sleeve T-Shirt

    Blue Canoe

    Short Sleeve T-Shirt
    Size Small youth
    $7.99 $4.39 45% off with code GOBIG
    27% off estimated retail
    Carter's Zip Up Hoodie (view 2)Carter's Zip Up Hoodie (view 1)Price Drop
    View Product: Carter's Zip Up Hoodie

    Carter's

    Zip Up Hoodie
    Size 9 mo
    $7.99 $4.39 45% off with code GOBIG
    72% off estimated retail
    Just One You Made by Carter's Sleeveless T-Shirt (view 2)Just One You Made by Carter's Sleeveless T-Shirt (view 1)Price Drop
    View Product: Just One You Made by Carter's Sleeveless T-Shirt

    Just One You Made by Carter's

    Sleeveless T-Shirt
    Size 3 mo
    $6.99 $3.84 45% off with code GOBIG
    $7
    Gymboree Long Sleeve T-Shirt (view 2)Gymboree Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Gymboree Long Sleeve T-Shirt

    Gymboree

    Long Sleeve T-Shirt
    Size 6-12 mo
    $9.99 $5.49 45% off with code GOBIG
    44% off estimated retail
    Jerzees Short Sleeve T-Shirt (view 2)Jerzees Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Jerzees Short Sleeve T-Shirt

    Jerzees

    Short Sleeve T-Shirt
    Size X-Small youth
    $7.99 $4.39 45% off with code GOBIG
    27% off estimated retail
    Just One You Short Sleeve Polo (view 2)Just One You Short Sleeve Polo (view 1)Price Drop
    View Product: Just One You Short Sleeve Polo

    Just One You

    Short Sleeve Polo
    Size 6 mo
    $5.99 $3.29 45% off with code GOBIG
    45% off estimated retail
    Baby Gap Short Sleeve T-Shirt (view 2)Baby Gap Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Baby Gap Short Sleeve T-Shirt

    Baby Gap

    Short Sleeve T-Shirt
    Size Medium tots
    $9.99 $5.49 45% off with code GOBIG
    37% off estimated retail
    Old Navy Short Sleeve Polo (view 2)Old Navy Short Sleeve Polo (view 1)Price Drop
    View Product: Old Navy Short Sleeve Polo

    Old Navy

    Short Sleeve Polo
    Size 3-6 mo
    $6.99 $3.84 45% off with code GOBIG
    36% off estimated retail
    Peek... Short Sleeve T-Shirt (view 2)Peek... Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Peek... Short Sleeve T-Shirt

    Peek...

    Short Sleeve T-Shirt
    Size 6-12 mo
    $9.99 $5.49 45% off with code GOBIG
    54% off estimated retail
    Healthtex Short Sleeve Button-Down Shirt (view 2)Healthtex Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Healthtex Short Sleeve Button-Down Shirt

    Healthtex

    Short Sleeve Button-Down Shirt
    Size 4T
    $8.99 $4.94 45% off with code GOBIG
    35% off estimated retail
    CRAFT + FLOW Short Sleeve T-Shirt (view 2)CRAFT + FLOW Short Sleeve T-Shirt (view 1)
    View Product: CRAFT + FLOW Short Sleeve T-Shirt

    CRAFT + FLOW

    Short Sleeve T-Shirt
    Size X-Large kids
    $8.99 $4.94 45% off with code GOBIG
    66% off estimated retail
    The Children's Place Short Sleeve Polo (view 2)The Children's Place Short Sleeve Polo (view 1)Price Drop
    View Product: The Children's Place Short Sleeve Polo

    The Children's Place

    Short Sleeve Polo
    Size 12 mo
    $8.99 $4.94 45% off with code GOBIG
    30% 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 12 mo
    $8.99 $4.94 45% off with code GOBIG
    59% off estimated retail
    National Collegian Short Sleeve T-Shirt (view 2)National Collegian Short Sleeve T-Shirt (view 1)
    View Product: National Collegian Short Sleeve T-Shirt

    National Collegian

    Short Sleeve T-Shirt
    Size 4T
    $9.99 $5.49 45% off with code GOBIG
    44% off estimated retail
    IZOD Short Sleeve T-Shirt (view 2)IZOD Short Sleeve T-Shirt (view 1)Price Drop
    View Product: IZOD Short Sleeve T-Shirt

    IZOD

    Short Sleeve T-Shirt
    Size 3 mo
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Splendid Zip Up Hoodie (view 2)Splendid Zip Up Hoodie (view 1)Price Drop
    View Product: Splendid Zip Up Hoodie

    Splendid

    Zip Up Hoodie
    Size 6-12 mo
    $9.99 $5.49 45% off with code GOBIG
    77% off estimated retail
    Genuine Baby From Osh Kosh Long Sleeve Button-Down Shirt (view 2)Genuine Baby From Osh Kosh Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Genuine Baby From Osh Kosh Long Sleeve Button-Down Shirt

    Genuine Baby From Osh Kosh

    Long Sleeve Button-Down Shirt
    Size 3 mo
    $8.99 $4.94 45% off with code GOBIG
    40% off estimated retail
    Ben Sherman Short Sleeve Button-Down Shirt (view 2)Ben Sherman Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Ben Sherman Short Sleeve Button-Down Shirt

    Ben Sherman

    Short Sleeve Button-Down Shirt
    Size 10
    $9.99 $5.49 45% off with code GOBIG
    79% off estimated retail
    Aqua Short Sleeve T-Shirt (view 2)Aqua Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Aqua Short Sleeve T-Shirt

    Aqua

    Short Sleeve T-Shirt
    Size 18 mo
    $8.99 $4.94 45% off with code GOBIG
    69% off estimated retail
    Lucky Brand Short Sleeve Henley (view 2)Lucky Brand Short Sleeve Henley (view 1)Price Drop
    View Product: Lucky Brand Short Sleeve Henley

    Lucky Brand

    Short Sleeve Henley
    Size 12 mo
    $7.99 $4.39 45% off with code GOBIG
    70% off estimated retail
    Teeny Weeny Long Sleeve Button-Down Shirt (view 2)Teeny Weeny Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Teeny Weeny Long Sleeve Button-Down Shirt

    Teeny Weeny

    Long Sleeve Button-Down Shirt
    Size 12 mo
    $7.99 $4.39 45% off with code GOBIG
    46% off estimated retail
    Janie and Jack Short Sleeve Polo (view 2)Janie and Jack Short Sleeve Polo (view 1)
    View Product: Janie and Jack Short Sleeve Polo

    Janie and Jack

    Short Sleeve Polo
    Size 12-18 mo
    $9.99 $5.49 45% off with code GOBIG
    64% off estimated retail
    Wonderboy Long Sleeve Button-Down Shirt (view 2)Wonderboy Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Wonderboy Long Sleeve Button-Down Shirt

    Wonderboy

    Long Sleeve Button-Down Shirt
    Size 6-12 mo
    $8.99 $4.94 45% off with code GOBIG
    79% off estimated retail
    Crazy 8 Short Sleeve Button-Down Shirt (view 2)Crazy 8 Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Crazy 8 Short Sleeve Button-Down Shirt

    Crazy 8

    Short Sleeve Button-Down Shirt
    Size 2T
    $7.99 $4.39 45% off with code GOBIG
    55% off estimated retail
    Gymboree Pullover Hoodie (view 2)Gymboree Pullover Hoodie (view 1)Price Drop
    View Product: Gymboree Pullover Hoodie

    Gymboree

    Pullover Hoodie
    Size 6-12 mo
    $9.99 $5.49 45% off with code GOBIG
    65% off estimated retail
    Tropical Relax Short Sleeve T-Shirt (view 2)Tropical Relax Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Tropical Relax Short Sleeve T-Shirt

    Tropical Relax

    Short Sleeve T-Shirt
    Size 12 mo
    $9.99 $5.49 45% off with code GOBIG
    33% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)Price Drop
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 6 mo
    $9.99 $5.49 45% off with code GOBIG
    63% off estimated retail
    Gymboree Long Sleeve T-Shirt (view 2)Gymboree Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Gymboree Long Sleeve T-Shirt

    Gymboree

    Long Sleeve T-Shirt
    Size 6-12 mo
    $9.99 $5.49 45% off with code GOBIG
    44% off estimated retail
    Adidas Long Sleeve Polo (view 2)Adidas Long Sleeve Polo (view 1)Price Drop
    View Product: Adidas Long Sleeve Polo

    Adidas

    Long Sleeve Polo
    Size 9 mo
    $9.99 $5.49 45% off with code GOBIG
    63% off estimated retail
    Tea Short Sleeve T-Shirt (view 2)Tea Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Tea Short Sleeve T-Shirt

    Tea

    Short Sleeve T-Shirt
    Size Small youth
    $8.99 $4.94 45% off with code GOBIG
    62% off estimated retail
    Healthtex Pullover Hoodie (view 2)Healthtex Pullover Hoodie (view 1)Price Drop
    View Product: Healthtex Pullover Hoodie

    Healthtex

    Pullover Hoodie
    Size 12 mo
    $9.99 $5.49 45% off with code GOBIG
    33% off estimated retail
    Crazy 8 Thermal Top (view 2)Crazy 8 Thermal Top (view 1)Price Drop
    View Product: Crazy 8 Thermal Top

    Crazy 8

    Thermal Top
    Size 6-12 mo
    $9.99 $5.49 45% off with code GOBIG
    28% off estimated retail
    Rocawear Short Sleeve Button-Down Shirt (view 2)Rocawear Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Rocawear Short Sleeve Button-Down Shirt

    Rocawear

    Short Sleeve Button-Down Shirt
    Size 3-6 mo
    $8.99 $4.94 45% off with code GOBIG
    59% off estimated retail
    Baby Gap Short Sleeve Button-Down Shirt (view 2)Baby Gap Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Baby Gap Short Sleeve Button-Down Shirt

    Baby Gap

    Short Sleeve Button-Down Shirt
    Size 12-18 mo
    $9.99 $5.49 45% off with code GOBIG
    63% off estimated retail
    Jumping Beans Long Sleeve T-Shirt (view 2)Jumping Beans Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Jumping Beans Long Sleeve T-Shirt

    Jumping Beans

    Long Sleeve T-Shirt
    Size 18 mo
    $7.99 $4.39 45% off with code GOBIG
    46% off estimated retail
    Baby Gap Outlet Zip Up Hoodie (view 2)Baby Gap Outlet Zip Up Hoodie (view 1)Price Drop
    View Product: Baby Gap Outlet Zip Up Hoodie

    Baby Gap Outlet

    Zip Up Hoodie
    Size 3-6 mo
    $8.99 $4.94 45% off with code GOBIG
    40% off estimated retail
    Crown & Ivy Long Sleeve T-Shirt (view 2)Crown & Ivy Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Crown & Ivy Long Sleeve T-Shirt

    Crown & Ivy

    Long Sleeve T-Shirt
    Size 6 mo
    $8.99 $4.94 45% off with code GOBIG
    69% off estimated retail
    Okaou Short Sleeve Polo (view 2)Okaou Short Sleeve Polo (view 1)Price Drop
    View Product: Okaou Short Sleeve Polo

    Okaou

    Short Sleeve Polo
    Size 10
    $9.99 $5.49 45% off with code GOBIG
    69% off estimated retail
    Baby Gap Outlet Zip Up Hoodie (view 2)Baby Gap Outlet Zip Up Hoodie (view 1)Price Drop
    View Product: Baby Gap Outlet Zip Up Hoodie

    Baby Gap Outlet

    Zip Up Hoodie
    Size 12-18 mo
    $8.99 $4.94 45% off with code GOBIG
    40% off estimated retail
    Kids Korner Short Sleeve T-Shirt (view 2)Kids Korner Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Kids Korner Short Sleeve T-Shirt

    Kids Korner

    Short Sleeve T-Shirt
    Size Large youth
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Carter's Short Sleeve Polo (view 2)Carter's Short Sleeve Polo (view 1)Price Drop
    View Product: Carter's Short Sleeve Polo

    Carter's

    Short Sleeve Polo
    Size 6 mo
    $8.99 $4.94 45% off with code GOBIG
    40% off estimated retail
    Baby Gap Outlet Short Sleeve Button-Down Shirt (view 2)Baby Gap Outlet Short Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Baby Gap Outlet Short Sleeve Button-Down Shirt

    Baby Gap Outlet

    Short Sleeve Button-Down Shirt
    Size 12-18 mo
    $8.99 $4.94 45% off with code GOBIG
    18% off estimated retail
    Little Wonders Short Sleeve Button-Down Shirt (view 2)Little Wonders Short Sleeve Button-Down Shirt (view 1)
    View Product: Little Wonders Short Sleeve Button-Down Shirt

    Little Wonders

    Short Sleeve Button-Down Shirt
    Size 6-9 mo
    $7.99 $4.39 45% off with code GOBIG
    27% off estimated retail
    Sanetta Pullover Sweater (view 2)Sanetta Pullover Sweater (view 1)Price Drop
    View Product: Sanetta Pullover Sweater

    Sanetta

    Pullover Sweater
    Size 80 cm
    $8.99 $4.94 45% off with code GOBIG
    50% off estimated retail
    Club House Short Sleeve Polo (view 2)Club House Short Sleeve Polo (view 1)Price Drop
    View Product: Club House Short Sleeve Polo

    Club House

    Short Sleeve Polo
    Size 2T
    $7.99 $4.39 45% off with code GOBIG
    27% off estimated retail
    Rocawear Short Sleeve Polo (view 2)Rocawear Short Sleeve Polo (view 1)Price Drop
    View Product: Rocawear Short Sleeve Polo

    Rocawear

    Short Sleeve Polo
    Size 18 mo
    $8.99 $4.94 45% off with code GOBIG
    59% off estimated retail
    Gap Kids Long Sleeve Button-Down Shirt (view 2)Gap Kids Long Sleeve Button-Down Shirt (view 1)Price Drop
    View Product: Gap Kids Long Sleeve Button-Down Shirt

    Gap Kids

    Long Sleeve Button-Down Shirt
    Size X-Small youth
    $8.99 $4.94 45% off with code GOBIG
    71% off estimated retail
    Converse Zip Up Hoodie (view 2)Converse Zip Up Hoodie (view 1)Price Drop
    View Product: Converse Zip Up Hoodie

    Converse

    Zip Up Hoodie
    Size 3-6 mo
    $8.99 $4.94 45% off with code GOBIG
    69% off estimated retail
    Colosseum Athletics Short Sleeve Jersey (view 2)Colosseum Athletics Short Sleeve Jersey (view 1)
    View Product: Colosseum Athletics Short Sleeve Jersey

    Colosseum Athletics

    Short Sleeve Jersey
    Size 6-12 mo
    $8.99 $4.94 45% off with code GOBIG
    35% off estimated retail
    Adidas Active T-Shirt (view 2)Adidas Active T-Shirt (view 1)Price Drop
    View Product: Adidas Active T-Shirt

    Adidas

    Active T-Shirt
    Size 3 mo
    $8.99 $4.94 45% off with code GOBIG
    65% off estimated retail
    Viatran Short Sleeve T-Shirt (view 2)Viatran Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Viatran Short Sleeve T-Shirt

    Viatran

    Short Sleeve T-Shirt
    Size 6 mo
    $8.99 $4.94 45% off with code GOBIG
    47% off estimated retail
    Boys Rock Short Sleeve T-Shirt (view 2)Boys Rock Short Sleeve T-Shirt (view 1)
    View Product: Boys Rock Short Sleeve T-Shirt

    Boys Rock

    Short Sleeve T-Shirt
    Size 3-6 mo
    $6.99 $3.84 45% off with code GOBIG
    30% off estimated retail
    Genuine Kids from Oshkosh Zip Up Hoodie (view 2)Genuine Kids from Oshkosh Zip Up Hoodie (view 1)Price Drop
    View Product: Genuine Kids from Oshkosh Zip Up Hoodie

    Genuine Kids from Oshkosh

    Zip Up Hoodie
    Size 12 mo
    $6.99 $3.84 45% off with code GOBIG
    61% off estimated retail
    Old Navy Zip Up Hoodie (view 2)Old Navy Zip Up Hoodie (view 1)Price Drop
    View Product: Old Navy Zip Up Hoodie

    Old Navy

    Zip Up Hoodie
    Size 6-12 mo
    $7.99 $4.39 45% off with code GOBIG
    53% off estimated retail
    Gap Outlet Short Sleeve Polo (view 2)Gap Outlet Short Sleeve Polo (view 1)
    View Product: Gap Outlet Short Sleeve Polo

    Gap Outlet

    Short Sleeve Polo
    Size 10
    $6.99 $3.84 45% off with code GOBIG
    69% off estimated retail
    First Impressions Short Sleeve T-Shirt (view 2)First Impressions Short Sleeve T-Shirt (view 1)Price Drop
    View Product: First Impressions Short Sleeve T-Shirt

    First Impressions

    Short Sleeve T-Shirt
    Size 12 mo
    $6.99 $3.84 45% off with code GOBIG
    58% off estimated retail
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