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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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![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/607735563/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/607735496/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 2T
$18.99 $10.44 45% off with code GOBIG
76% off estimated retail![Polo by Ralph Lauren Pullover Sweater (view 2)](https://cf-assets-thredup.thredup.com/assets/608383722/complimentary.jpg)
![Polo by Ralph Lauren Pullover Sweater (view 1)](https://cf-assets-thredup.thredup.com/assets/608383684/complimentary.jpg)
Polo by Ralph Lauren
Pullover Sweater
Size 4T
$19.99 $10.99 45% off with code GOBIG
66% off estimated retail![Avalon Apparel Group Pullover Hoodie (view 2)](https://cf-assets-thredup.thredup.com/assets/607393894/complimentary.jpg)
![Avalon Apparel Group Pullover Hoodie (view 1)](https://cf-assets-thredup.thredup.com/assets/607393798/complimentary.jpg)
Avalon Apparel Group
Pullover Hoodie
Size 4T
$12.99 $7.14 45% off with code GOBIG
51% off estimated retail![Polo by Ralph Lauren Pullover Sweater (view 2)](https://cf-assets-thredup.thredup.com/assets/607943565/complimentary.jpg)
![Polo by Ralph Lauren Pullover Sweater (view 1)](https://cf-assets-thredup.thredup.com/assets/607943494/complimentary.jpg)
Polo by Ralph Lauren
Pullover Sweater
Size 4T
$16.99 $9.34 45% off with code GOBIG
71% off estimated retail![Matt's Scooter Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/607836900/complimentary.jpg)
![Matt's Scooter Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/607836862/complimentary.jpg)
Matt's Scooter
Short Sleeve Button-Down Shirt
Size 2T
$8.99 $4.94 45% off with code GOBIG
66% off estimated retail![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/607365660/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/607365585/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 4T
$17.99 $9.89 45% off with code GOBIG
71% off estimated retail![Florence Eiseman Long Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/607259383/complimentary.jpg)
![Florence Eiseman Long Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/607259318/complimentary.jpg)
Florence Eiseman
Long Sleeve Polo
Size 2T
$20.99 $11.54 45% off with code GOBIG
72% off estimated retail![Kenneth Cole Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/606393378/complimentary.jpg)
![Kenneth Cole Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/606393342/complimentary.jpg)
Kenneth Cole
Long Sleeve Button-Down Shirt
Size 4T
$15.99 $8.79 45% off with code GOBIG
68% off estimated retail![Tommy Hilfiger Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/607272059/complimentary.jpg)
![Tommy Hilfiger Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/607272034/complimentary.jpg)
Tommy Hilfiger
Short Sleeve Button-Down Shirt
Size 4T
$8.99 $4.94 45% off with code GOBIG
76% off estimated retail![Vineyard Vines Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/606723058/complimentary.jpg)
![Vineyard Vines Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/606723016/complimentary.jpg)
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 4T
$12.99 $7.14 45% off with code GOBIG
73% off estimated retail![Baby Gap Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/605396907/complimentary.jpg)
![Baby Gap Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/605396948/complimentary.jpg)
Baby Gap
Short Sleeve Button-Down Shirt
Size 2T
$11.99 $6.59 45% off with code GOBIG
55% off estimated retail![Janie and Jack Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/605396396/complimentary.jpg)
![Janie and Jack Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/605396354/complimentary.jpg)
Janie and Jack
Short Sleeve Button-Down Shirt
Size 2T
$15.99 $8.79 45% off with code GOBIG
64% off estimated retail![Hanna Andersson Long Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/606440738/complimentary.jpg)
![Hanna Andersson Long Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/606440706/complimentary.jpg)
Hanna Andersson
Long Sleeve T-Shirt
Size 2T
$10.99 $6.04 45% off with code GOBIG
47% off estimated retail![OshKosh B'gosh Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/605262523/complimentary.jpg)
![OshKosh B'gosh Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/605262494/complimentary.jpg)
OshKosh B'gosh
Short Sleeve Button-Down Shirt
Size 4T
$15.99 $8.79 45% off with code GOBIG
48% off estimated retail![Assorted Brands Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/601323239/complimentary.jpg)
![Assorted Brands Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/601323193/complimentary.jpg)
Assorted Brands
Short Sleeve Button-Down Shirt
Size 2T
$8.99 $4.94 45% off with code GOBIG
59% off estimated retail![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/605148467/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/605148374/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 2T
$16.99 $9.34 45% off with code GOBIG
76% off estimated retail![Kate Quinn Organics Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/604359728/complimentary.jpg)
![Kate Quinn Organics Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/604359634/complimentary.jpg)
Kate Quinn Organics
Long Sleeve Button-Down Shirt
Size 2T
$11.99 $6.59 45% off with code GOBIG
62% off estimated retail![Janie and Jack Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/604890017/complimentary.jpg)
![Janie and Jack Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/604889964/complimentary.jpg)
Janie and Jack
Long Sleeve Button-Down Shirt
Size 2T
$12.99 $7.14 45% off with code GOBIG
69% off estimated retail![Ocean + Coast Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/603940422/complimentary.jpg)
![Ocean + Coast Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/603940354/complimentary.jpg)
Ocean + Coast
Long Sleeve Button-Down Shirt
Size 4T
$14.99 $8.24 45% off with code GOBIG
71% off estimated retail![Polo by Ralph Lauren Pullover Hoodie (view 2)](https://cf-assets-thredup.thredup.com/assets/591876029/complimentary.jpg)
![Polo by Ralph Lauren Pullover Hoodie (view 1)](https://cf-assets-thredup.thredup.com/assets/591875907/complimentary.jpg)
Polo by Ralph Lauren
Pullover Hoodie
Size 2T
$39.99 $21.99 45% off with code GOBIG
32% off estimated retail![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/604346742/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/604346690/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 4T
$15.99 $8.79 45% off with code GOBIG
78% off estimated retail![Mick Mack Ltd Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/605005427/complimentary.jpg)
![Mick Mack Ltd Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/605005361/complimentary.jpg)
Mick Mack Ltd
Long Sleeve Button-Down Shirt
Size 2T
$9.99 $5.49 45% off with code GOBIG
65% off estimated retail![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/603446723/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/603446649/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 2T
$17.99 $9.89 45% off with code GOBIG
71% off estimated retail![Instant Message Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/603294667/complimentary.jpg)
![Instant Message Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/603294624/complimentary.jpg)
Instant Message
Short Sleeve T-Shirt
Size 4T
$14.99 $8.24 45% off with code GOBIG
33% off estimated retail![OshKosh B'gosh Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/602605602/complimentary.jpg)
![OshKosh B'gosh Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/602605564/complimentary.jpg)
OshKosh B'gosh
Short Sleeve Button-Down Shirt
Size 4T
$12.99 $7.14 45% off with code GOBIG
55% off estimated retail![7 For All Mankind Long Sleeve Henley (view 2)](https://cf-assets-thredup.thredup.com/assets/602818947/complimentary.jpg)
![7 For All Mankind Long Sleeve Henley (view 1)](https://cf-assets-thredup.thredup.com/assets/602818897/complimentary.jpg)
7 For All Mankind
Long Sleeve Henley
Size 2T
$10.99 $6.04 45% off with code GOBIG
75% off estimated retail![Tommy Bahama Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/602573058/complimentary.jpg)
![Tommy Bahama Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/602572892/complimentary.jpg)
Tommy Bahama
Long Sleeve Button-Down Shirt
Size 2T
$17.99 $9.89 45% off with code GOBIG
50% off estimated retail![Egg New York Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/604086615/complimentary.jpg)
![Egg New York Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/604086581/complimentary.jpg)
Egg New York
Long Sleeve Button-Down Shirt
Size 4T
$46.99 $25.84 45% off with code GOBIG
56% off estimated retail![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/602363902/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/602363769/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 2T
$16.99 $9.34 45% off with code GOBIG
76% off estimated retail![Appaman Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/601964147/complimentary.jpg)
![Appaman Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/601964009/complimentary.jpg)
Appaman
Long Sleeve Button-Down Shirt
Size 4T
$14.99 $8.24 45% off with code GOBIG
66% off estimated retail![Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/601338675/complimentary.jpg)
![Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/601338560/complimentary.jpg)
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 4T
$16.99 $9.34 45% off with code GOBIG
73% off estimated retail![Assorted Brands Long Sleeve Turtleneck (view 2)](https://cf-assets-thredup.thredup.com/assets/601207848/complimentary.jpg)
![Assorted Brands Long Sleeve Turtleneck (view 1)](https://cf-assets-thredup.thredup.com/assets/601207821/complimentary.jpg)
Assorted Brands
Long Sleeve Turtleneck
Size 4T
$7.99 $4.39 45% off with code GOBIG
70% off estimated retail![Ben Sherman Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/601697498/complimentary.jpg)
![Ben Sherman Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/601697359/complimentary.jpg)
Ben Sherman
Long Sleeve Button-Down Shirt
Size 4T
$12.99 $7.14 45% off with code GOBIG
76% off estimated retail![Ralph Lauren Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/600390467/complimentary.jpg)
![Ralph Lauren Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/600390431/complimentary.jpg)
Ralph Lauren
Short Sleeve Button-Down Shirt
Size 2T
$12.99 $7.14 45% off with code GOBIG
62% off estimated retail