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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.

6-9 moRemove filter
67 items
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    Zara Baby Pullover Sweater (view 2)Zara Baby Pullover Sweater (view 1)
    View Product: Zara Baby Pullover Sweater

    Zara Baby

    Pullover Sweater
    Size 6-9 mo
    $13.99
    61% off estimated retail
    Tommy Hilfiger Short Sleeve T-Shirt (view 2)Tommy Hilfiger Short Sleeve T-Shirt (view 1)
    View Product: Tommy Hilfiger Short Sleeve T-Shirt

    Tommy Hilfiger

    Short Sleeve T-Shirt
    Size 6-9 mo
    $9.99
    44% off estimated retail
    Zara Baby Long Sleeve T-Shirt (view 2)Zara Baby Long Sleeve T-Shirt (view 1)
    View Product: Zara Baby Long Sleeve T-Shirt

    Zara Baby

    Long Sleeve T-Shirt
    Size 6-9 mo
    $7.99
    46% off estimated retail
    Mori Short Sleeve T-Shirt (view 2)Mori Short Sleeve T-Shirt (view 1)
    View Product: Mori Short Sleeve T-Shirt

    Mori

    Short Sleeve T-Shirt
    Size 6-9 mo
    $10.99
    50% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Mori Short Sleeve T-Shirt (view 2)Mori Short Sleeve T-Shirt (view 1)
    View Product: Mori Short Sleeve T-Shirt

    Mori

    Short Sleeve T-Shirt
    Size 6-9 mo
    $7.99
    63% off estimated retail
    Zara Baby Pullover Sweater (view 2)Zara Baby Pullover Sweater (view 1)
    View Product: Zara Baby Pullover Sweater

    Zara Baby

    Pullover Sweater
    Size 6-9 mo
    $15.99
    55% off estimated retail
    Nantucket Kids Pullover Sweater (view 2)Nantucket Kids Pullover Sweater (view 1)
    View Product: Nantucket Kids Pullover Sweater

    Nantucket Kids

    Pullover Sweater
    Size 6-9 mo
    $13.99 $10.49 25% off with code THANKU
    74% off estimated retail
    Burt's Bees Baby Short Sleeve T-Shirt (view 2)Burt's Bees Baby Short Sleeve T-Shirt (view 1)
    View Product: Burt's Bees Baby Short Sleeve T-Shirt

    Burt's Bees Baby

    Short Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    $7
    Primark Pullover Sweater (view 2)Primark Pullover Sweater (view 1)
    View Product: Primark Pullover Sweater

    Primark

    Pullover Sweater
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    55% off estimated retail
    Brooklyn Industries Short Sleeve T-Shirt (view 2)Brooklyn Industries Short Sleeve T-Shirt (view 1)
    View Product: Brooklyn Industries Short Sleeve T-Shirt

    Brooklyn Industries

    Short Sleeve T-Shirt
    Size 6-9 mo
    $5.99 $4.79 20% off with code THANKU
    14% off estimated retail
    H&M Pullover Sweater (view 2)H&M Pullover Sweater (view 1)
    View Product: H&M Pullover Sweater

    H&M

    Pullover Sweater
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    30% off estimated retail
    Cloud Island Thermal Top (view 2)Cloud Island Thermal Top (view 1)
    View Product: Cloud Island Thermal Top

    Cloud Island

    Thermal Top
    Size 6-9 mo
    $4.99 $3.99 20% off with code THANKU
    28% off estimated retail
    Majestic Short Sleeve T-Shirt (view 2)Majestic Short Sleeve T-Shirt (view 1)
    View Product: Majestic Short Sleeve T-Shirt

    Majestic

    Short Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Greendog Pullover Sweater (view 2)Greendog Pullover Sweater (view 1)
    View Product: Greendog Pullover Sweater

    Greendog

    Pullover Sweater
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    59% off estimated retail
    Cloud Island Short Sleeve T-Shirt (view 2)Cloud Island Short Sleeve T-Shirt (view 1)
    View Product: Cloud Island Short Sleeve T-Shirt

    Cloud Island

    Short Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    $7
    Zara Pullover Sweater (view 2)Zara Pullover Sweater (view 1)
    View Product: Zara Pullover Sweater

    Zara

    Pullover Sweater
    Size 6-9 mo
    $14.99 $11.99 20% off with code THANKU
    58% off estimated retail
    H&M Pullover Sweater (view 2)H&M Pullover Sweater (view 1)
    View Product: H&M Pullover Sweater

    H&M

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    $10
    Boyz Short Sleeve T-Shirt (view 2)Boyz Short Sleeve T-Shirt (view 1)
    View Product: Boyz Short Sleeve T-Shirt

    Boyz

    Short Sleeve T-Shirt
    Size 6-9 mo
    $4.99 $3.99 20% off with code THANKU
    44% off estimated retail
    Hadas #miniloves Pullover Sweater (view 2)Hadas #miniloves Pullover Sweater (view 1)
    View Product: Hadas #miniloves Pullover Sweater

    Hadas #miniloves

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    56% off estimated retail
    Hadas #miniloves Pullover Sweater (view 2)Hadas #miniloves Pullover Sweater (view 1)
    View Product: Hadas #miniloves Pullover Sweater

    Hadas #miniloves

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    56% off estimated retail
    Zara Baby Long Sleeve T-Shirt (view 2)Zara Baby Long Sleeve T-Shirt (view 1)
    View Product: Zara Baby Long Sleeve T-Shirt

    Zara Baby

    Long Sleeve T-Shirt
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    33% off estimated retail
    Pagelaurenbaby baby Long Sleeve Henley (view 2)Pagelaurenbaby baby Long Sleeve Henley (view 1)
    View Product: Pagelaurenbaby baby Long Sleeve Henley

    Pagelaurenbaby baby

    Long Sleeve Henley
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    33% 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 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    59% off estimated retail
    Primark Long Sleeve T-Shirt (view 2)Primark Long Sleeve T-Shirt (view 1)
    View Product: Primark Long Sleeve T-Shirt

    Primark

    Long Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    $7
    H&M Pullover Sweater (view 2)H&M Pullover Sweater (view 1)
    View Product: H&M Pullover Sweater

    H&M

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    $11
    MGM Short Sleeve T-Shirt (view 2)MGM Short Sleeve T-Shirt (view 1)
    View Product: MGM Short Sleeve T-Shirt

    MGM

    Short Sleeve T-Shirt
    Size 6-9 mo
    $5.99 $4.79 20% off with code THANKU
    60% off estimated retail
    Ocean Baby Short Sleeve T-Shirt (view 2)Ocean Baby Short Sleeve T-Shirt (view 1)
    View Product: Ocean Baby Short Sleeve T-Shirt

    Ocean Baby

    Short Sleeve T-Shirt
    Size 6-9 mo
    $4.99 $3.99 20% off with code THANKU
    28% off estimated retail
    Joules Long Sleeve T-Shirt (view 2)Joules Long Sleeve T-Shirt (view 1)
    View Product: Joules Long Sleeve T-Shirt

    Joules

    Long Sleeve T-Shirt
    Size 6-9 mo
    $14.99 $11.24 25% off with code THANKU
    58% off estimated retail
    Assorted Brands Pullover Sweater (view 2)Assorted Brands Pullover Sweater (view 1)
    View Product: Assorted Brands Pullover Sweater

    Assorted Brands

    Pullover Sweater
    Size 6-9 mo
    $12.99 $9.74 25% off with code THANKU
    63% off estimated retail
    Kenneth Cole Long Sleeve T-Shirt (view 2)Kenneth Cole Long Sleeve T-Shirt (view 1)
    View Product: Kenneth Cole Long Sleeve T-Shirt

    Kenneth Cole

    Long Sleeve T-Shirt
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    38% off estimated retail
    Little Lad Pullover Sweater (view 2)Little Lad Pullover Sweater (view 1)
    View Product: Little Lad Pullover Sweater

    Little Lad

    Pullover Sweater
    Size 6-9 mo
    $12.99 $9.09 30% off with code THANKU
    71% off estimated retail
    Tiny Tots Pullover Sweater (view 2)Tiny Tots Pullover Sweater (view 1)
    View Product: Tiny Tots Pullover Sweater

    Tiny Tots

    Pullover Sweater
    Size 6-9 mo
    $11.99 $8.39 30% off with code THANKU
    33% 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 6-9 mo
    $11.99 $9.59 20% off with code THANKU
    55% off estimated retail
    Monica + Andy Short Sleeve T-Shirt (view 2)Monica + Andy Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Monica + Andy Short Sleeve T-Shirt

    Monica + Andy

    Short Sleeve T-Shirt
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    33% off estimated retail
    Benetton Baby Pullover Sweater (view 2)Benetton Baby Pullover Sweater (view 1)Price Drop
    View Product: Benetton Baby Pullover Sweater

    Benetton Baby

    Pullover Sweater
    Size 6-9 mo
    $10.99 $8.79 20% off with code THANKU
    69% off estimated retail
    The Children's Place Pullover Sweater (view 2)The Children's Place Pullover Sweater (view 1)Price Drop
    View Product: The Children's Place Pullover Sweater

    The Children's Place

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    63% off estimated retail
    F&F Clothing Short Sleeve Henley (view 2)F&F Clothing Short Sleeve Henley (view 1)
    View Product: F&F Clothing Short Sleeve Henley

    F&F Clothing

    Short Sleeve Henley
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    27% off estimated retail
    Star Wars Pullover Sweater (view 2)Star Wars Pullover Sweater (view 1)Price Drop
    View Product: Star Wars Pullover Sweater

    Star Wars

    Pullover Sweater
    Size 6-9 mo
    $10.99 $8.24 25% off with code THANKU
    38% off estimated retail
    Baby Sprockets Pullover Sweater (view 2)Baby Sprockets Pullover Sweater (view 1)Price Drop
    View Product: Baby Sprockets Pullover Sweater

    Baby Sprockets

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.49 25% off with code THANKU
    63% off estimated retail
    The Children's Place Long Sleeve T-Shirt (view 2)The Children's Place Long Sleeve T-Shirt (view 1)Price Drop
    View Product: The Children's Place Long Sleeve T-Shirt

    The Children's Place

    Long Sleeve T-Shirt
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    28% 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 $7.49 25% off with code THANKU
    66% off estimated retail
    Tea Long Sleeve T-Shirt (view 2)Tea Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Tea Long Sleeve T-Shirt

    Tea

    Long Sleeve T-Shirt
    Size 6-9 mo
    $11.99 $9.59 20% off with code THANKU
    61% off estimated retail
    First Impressions Short Sleeve T-Shirt (view 2)First Impressions Short Sleeve T-Shirt (view 1)
    View Product: First Impressions Short Sleeve T-Shirt

    First Impressions

    Short Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    66% off estimated retail
    Hb Short Sleeve T-Shirt (view 2)Hb Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Hb Short Sleeve T-Shirt

    Hb

    Short Sleeve T-Shirt
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    $7
    Cat & Jack Pullover Sweater (view 2)Cat & Jack Pullover Sweater (view 1)Price Drop
    View Product: Cat & Jack Pullover Sweater

    Cat & Jack

    Pullover Sweater
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    47% off estimated retail
    Blue Seven Kids Short Sleeve T-Shirt (view 2)Blue Seven Kids Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Blue Seven Kids Short Sleeve T-Shirt

    Blue Seven Kids

    Short Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $6.74 25% off with code THANKU
    40% off estimated retail
    The Honest Co. Short Sleeve T-Shirt (view 2)The Honest Co. Short Sleeve T-Shirt (view 1)Price Drop
    View Product: The Honest Co. Short Sleeve T-Shirt

    The Honest Co.

    Short Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    The Children's Place Long Sleeve Henley (view 2)The Children's Place Long Sleeve Henley (view 1)Price Drop
    View Product: The Children's Place Long Sleeve Henley

    The Children's Place

    Long Sleeve Henley
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    37% off estimated retail
    Sesame Street Short Sleeve T-Shirt (view 2)Sesame Street Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Sesame Street Short Sleeve T-Shirt

    Sesame Street

    Short Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    18% off estimated retail
    Child of Mine by Carter's Short Sleeve T-Shirt (view 2)Child of Mine by Carter's Short Sleeve T-Shirt (view 1)New With Tags
    View Product: Child of Mine by Carter's Short Sleeve T-Shirt

    Child of Mine by Carter's

    Short Sleeve T-Shirt
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    $7
    First Impressions Long Sleeve T-Shirt (view 2)First Impressions Long Sleeve T-Shirt (view 1)Price Drop
    View Product: First Impressions Long Sleeve T-Shirt

    First Impressions

    Long Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    50% off estimated retail
    Cloud Island Short Sleeve T-Shirt (view 2)Cloud Island Short Sleeve T-Shirt (view 1)Rare Find
    View Product: Cloud Island Short Sleeve T-Shirt

    Cloud Island

    Short Sleeve T-Shirt
    Size 6-9 mo
    $5.99 $4.79 20% off with code THANKU
    14% off estimated retail
    Zara Long Sleeve T-Shirt (view 2)Zara Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Zara Long Sleeve T-Shirt

    Zara

    Long Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    55% off estimated retail
    Cat & Jack Pullover Sweater (view 2)Cat & Jack Pullover Sweater (view 1)Price Drop
    View Product: Cat & Jack Pullover Sweater

    Cat & Jack

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    41% off estimated retail
    Playskool Pullover Sweater (view 2)Playskool Pullover Sweater (view 1)Price Drop
    View Product: Playskool Pullover Sweater

    Playskool

    Pullover Sweater
    Size 6-9 mo
    $9.99 $7.49 25% off with code THANKU
    44% off estimated retail
    Zara Long Sleeve T-Shirt (view 2)Zara Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Zara Long Sleeve T-Shirt

    Zara

    Long Sleeve T-Shirt
    Size 6-9 mo
    $9.99 $7.99 20% off with code THANKU
    44% off estimated retail
    Signature Short Sleeve T-Shirt (view 2)Signature Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Signature Short Sleeve T-Shirt

    Signature

    Short Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    40% off estimated retail
    Tommy Hilfiger Long Sleeve T-Shirt (view 2)Tommy Hilfiger Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Tommy Hilfiger Long Sleeve T-Shirt

    Tommy Hilfiger

    Long Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    55% off estimated retail
    Puma Active T-Shirt (view 2)Puma Active T-Shirt (view 1)Price Drop
    View Product: Puma Active T-Shirt

    Puma

    Active T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    59% off estimated retail
    Noppies Long Sleeve T-Shirt (view 2)Noppies Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Noppies Long Sleeve T-Shirt

    Noppies

    Long Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    Nike Active T-Shirt (view 2)Nike Active T-Shirt (view 1)Price Drop
    View Product: Nike Active T-Shirt

    Nike

    Active T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    65% off estimated retail
    3Pommes Long Sleeve T-Shirt (view 2)3Pommes Long Sleeve T-Shirt (view 1)
    View Product: 3Pommes Long Sleeve T-Shirt

    3Pommes

    Long Sleeve T-Shirt
    Size 6-9 mo
    $6.99 $5.59 20% off with code THANKU
    65% off estimated retail
    Buster Brown Long Sleeve T-Shirt (view 2)Buster Brown Long Sleeve T-Shirt (view 1)Price Drop
    View Product: Buster Brown Long Sleeve T-Shirt

    Buster Brown

    Long Sleeve T-Shirt
    Size 6-9 mo
    $8.99 $7.19 20% off with code THANKU
    10% off estimated retail
    Bon Bebe Short Sleeve Henley (view 2)Bon Bebe Short Sleeve Henley (view 1)Price Drop
    View Product: Bon Bebe Short Sleeve Henley

    Bon Bebe

    Short Sleeve Henley
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    20% off estimated retail
    Jumping Beans Short Sleeve T-Shirt (view 2)Jumping Beans Short Sleeve T-Shirt (view 1)Price Drop
    View Product: Jumping Beans Short Sleeve T-Shirt

    Jumping Beans

    Short Sleeve T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    33% off estimated retail
    The Children's Place Active T-Shirt (view 2)The Children's Place Active T-Shirt (view 1)Price Drop
    View Product: The Children's Place Active T-Shirt

    The Children's Place

    Active T-Shirt
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    46% off estimated retail
    Cuddle Bear Pullover Sweater (view 2)Cuddle Bear Pullover Sweater (view 1)Price Drop
    View Product: Cuddle Bear Pullover Sweater

    Cuddle Bear

    Pullover Sweater
    Size 6-9 mo
    $7.99 $6.39 20% off with code THANKU
    42% off estimated retail
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