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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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View Product: Gap Kids Long Sleeve Polo
Gap Kids
Long Sleeve Polo
Size X-Large kids
$12.99 $10.39 20% off with code SHINE
51% off estimated retailView Product: Unbranded Pullover Sweater
Unbranded
Pullover Sweater
Size Small youth
$23.99 $16.79 30% off with code SHINE
56% off estimated retailView Product: Air Jordan Active T-Shirt
Air Jordan
Active T-Shirt
Size Medium infants
$15.99 $11.99 25% off with code SHINE
63% off estimated retailView Product: H&M Long Sleeve Button-Down Shirt
H&M
Long Sleeve Button-Down Shirt
Size 18 mo
$8.99 $7.19 20% off with code SHINE
35% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small kids
$16.99 $12.74 25% off with code SHINE
50% off estimated retailView Product: FIRSTS by petit lem Long Sleeve Button-Down Shirt
FIRSTS by petit lem
Long Sleeve Button-Down Shirt
Size 9 mo
$8.99 $7.19 20% off with code SHINE
69% off estimated retailView Product: Hurley Pullover Hoodie
Hurley
Pullover Hoodie
Size X-Large youth
$19.99 $14.99 25% off with code SHINE
69% off estimated retailView Product: Janie and Jack Short Sleeve Polo
Janie and Jack
Short Sleeve Polo
Size 6-12 mo
$8.99 $7.19 20% off with code SHINE
67% off estimated retailView Product: Red Long Sleeve Button-Down Shirt
Red
Long Sleeve Button-Down Shirt
Size 110 cm
$6.99 $5.59 20% off with code SHINE
61% off estimated retailView Product: Isaac Mizrahi New York Long Sleeve Button-Down Shirt
Isaac Mizrahi New York
Long Sleeve Button-Down Shirt
Size 8
$12.99 $9.74 25% off with code SHINE
70% off estimated retailView Product: Edgehill Collection Pullover Sweater
Edgehill Collection
Pullover Sweater
Size 3 mo
$13.99 $9.79 30% off with code SHINE
68% off estimated retailView Product: Primary Clothing Zip Up Hoodie
Primary Clothing
Zip Up Hoodie
Size 3-6 mo
$11.99 $8.99 25% off with code SHINE
66% off estimated retailView Product: Hanna Andersson Zip Up Hoodie
Hanna Andersson
Zip Up Hoodie
Size 3-6 mo
$18.99 $11.39 40% off with code SHINE
60% off estimated retailView Product: Hanna Andersson Short Sleeve Button-Down Shirt
Hanna Andersson
Short Sleeve Button-Down Shirt
Size 3-6 mo
$11.99 $8.39 30% off with code SHINE
60% off estimated retailView Product: Lyle & Scott Long Sleeve Button-Down Shirt
Lyle & Scott
Long Sleeve Button-Down Shirt
Size 12
$13.99 $9.09 35% off with code SHINE
74% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: SONOMA life + style Pullover Sweater
SONOMA life + style
Pullover Sweater
Size X-Large youth
$10.99 $8.79 20% off with code SHINE
59% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: In Design Boyswear Long Sleeve Button-Down Shirt
In Design Boyswear
Long Sleeve Button-Down Shirt
Size 6
$12.99 $9.09 30% off with code SHINE
60% off estimated retailView Product: Carter's Long Sleeve Button-Down Shirt
Carter's
Long Sleeve Button-Down Shirt
Size 12 mo
$6.99 $5.59 20% off with code SHINE
73% off estimated retailView Product: Lullaby Set Short Sleeve Button-Down Shirt
Lullaby Set
Short Sleeve Button-Down Shirt
Size 2T
$32.99 $18.14 45% off with code SHINE
54% off estimated retailView Product: Pan Con Chocolate Long Sleeve Button-Down Shirt
Pan Con Chocolate
Long Sleeve Button-Down Shirt
Size 8
$30.99 $17.04 45% off with code SHINE
79% off estimated retailView Product: Reiss Long Sleeve Button-Down Shirt
Reiss
Long Sleeve Button-Down Shirt
Size 8
$42.99 $32.24 25% off with code SHINE
60% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$16.99 $12.74 25% off with code SHINE
58% off estimated retailView Product: Legendary Whitetails Pullover Hoodie
Legendary Whitetails
Pullover Hoodie
Size Small youth
$8.99 $7.19 20% off with code SHINE
59% off estimated retailView Product: Bonpoint Short Sleeve Button-Down Shirt
Bonpoint
Short Sleeve Button-Down Shirt
Size 6
$43.99 $28.59 35% off with code SHINE
73% off estimated retailView Product: Adidas Short Sleeve Jersey
Adidas
Short Sleeve Jersey
Size Medium infants
$19.99 $14.99 25% off with code SHINE
71% off estimated retailView Product: OT Sports Short Sleeve T-Shirt
OT Sports
Short Sleeve T-Shirt
Size Medium youth
$8.99 $7.19 20% off with code SHINE
66% off estimated retailView Product: Hurley Short Sleeve Button-Down Shirt
Hurley
Short Sleeve Button-Down Shirt
Size X-Small youth
$14.99 $11.99 20% off with code SHINE
69% off estimated retailView Product: Gildan Short Sleeve T-Shirt
Gildan
Short Sleeve T-Shirt
Size Medium youth
$5.99 $4.79 20% off with code SHINE
45% off estimated retailView Product: Assorted Brands Short Sleeve T-Shirt
Assorted Brands
Short Sleeve T-Shirt
Size 7
$8.99 $7.19 20% off with code SHINE
59% off estimated retailView Product: Banana Republic Long Sleeve Button-Down Shirt
Banana Republic
Long Sleeve Button-Down Shirt
Size Small infants
$17.99 $14.39 20% off with code SHINE
68% off estimated retailView Product: Augusta Sportswear Short Sleeve Button-Down Shirt
Augusta Sportswear
Short Sleeve Button-Down Shirt
Size Small youth
$7.99 $6.39 20% off with code SHINE
68% off estimated retailView Product: Nukutavake Short Sleeve Button-Down Shirt
Nukutavake
Short Sleeve Button-Down Shirt
Size 8
$15.99 $10.39 35% off with code SHINE
61% off estimated retailView Product: Active by Old Navy Active T-Shirt
Active by Old Navy
Active T-Shirt
Size Large infants
$6.99 $5.59 20% off with code SHINE
50% off estimated retailView Product: Nike Short Sleeve Polo
Nike
Short Sleeve Polo
Size Medium infants
$16.99 $11.04 35% off with code SHINE
64% off estimated retailView Product: Colosseum Athletics Pullover Hoodie
Colosseum Athletics
Pullover Hoodie
Size 12
$16.99 $12.74 25% off with code SHINE
61% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Small youth
$23.99 $15.59 35% off with code SHINE
56% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: Epic Threads Short Sleeve Button-Down Shirt
Epic Threads
Short Sleeve Button-Down Shirt
Size Medium infants
$7.99 $6.39 20% off with code SHINE
63% off estimated retailView Product: 32 Degrees Long Sleeve T-Shirt
32 Degrees
Long Sleeve T-Shirt
Size Medium kids
$13.99 $5.60 60% off with code SHINE
36% off estimated retailView Product: Miniclasix Long Sleeve Button-Down Shirt
Miniclasix
Long Sleeve Button-Down Shirt
Size 18 mo
$16.99 $11.89 30% off with code SHINE
80% off estimated retailView Product: Tailor Vintage Long Sleeve Button-Down Shirt
Tailor Vintage
Long Sleeve Button-Down Shirt
Size 6
$44.99 $33.74 25% off with code SHINE
58% off estimated retailView Product: Class Club Long Sleeve Button-Down Shirt
Class Club
Long Sleeve Button-Down Shirt
Size 10
$8.99 $7.19 20% off with code SHINE
72% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small infants
$12.99 $9.74 25% off with code SHINE
51% off estimated retailView Product: Gerber Long Sleeve Button-Down Shirt
Gerber
Long Sleeve Button-Down Shirt
Size 0-3 mo
$6.99 $5.59 20% off with code SHINE
53% off estimated retailView Product: New Balance Active T-Shirt
New Balance
Active T-Shirt
Size Small youth
$11.99 $9.59 20% off with code SHINE
63% off estimated retailView Product: Assorted Brands Short Sleeve T-Shirt
Assorted Brands
Short Sleeve T-Shirt
Size 130 cm
$8.99 $7.19 20% off with code SHINE
59% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium infants
$14.99 $9.74 35% off with code SHINE
58% off estimated retailView Product: Under Armour Short Sleeve T-Shirt
Under Armour
Short Sleeve T-Shirt
Size Medium youth
$13.99 $10.49 25% off with code SHINE
48% off estimated retailView Product: The Bailey Boys Short Sleeve T-Shirt
The Bailey Boys
Short Sleeve T-Shirt
Size Small infants
$6.99 $5.59 20% off with code SHINE
53% off estimated retailView Product: Nordstrom Rack Short Sleeve T-Shirt
Nordstrom Rack
Short Sleeve T-Shirt
Size 10
$9.99 $7.49 25% off with code SHINE
37% off estimated retailView Product: SeanJean Long Sleeve Button-Down Shirt
SeanJean
Long Sleeve Button-Down Shirt
Size 6-9 mo
$9.99 $7.49 25% off with code SHINE
65% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Medium youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: WES AND WILLY Short Sleeve Henley
WES AND WILLY
Short Sleeve Henley
Size Large youth
$16.99 $12.74 25% off with code SHINE
58% off estimated retailView Product: Isabel Garreton Long Sleeve T-Shirt
Isabel Garreton
Long Sleeve T-Shirt
Size 4T
$32.99 $18.14 45% off with code SHINE
54% off estimated retailView Product: Hush Puppies Long Sleeve Polo
Hush Puppies
Long Sleeve Polo
Size 110 cm
$15.99 $11.99 25% off with code SHINE
61% off estimated retailView Product: Assorted Brands Short Sleeve T-Shirt
Assorted Brands
Short Sleeve T-Shirt
Size Medium youth
$11.99 $9.59 20% off with code SHINE
45% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: Assorted Brands Long Sleeve Button-Down Shirt
Assorted Brands
Long Sleeve Button-Down Shirt
Size 150 cm
$15.99 $12.79 20% off with code SHINE
63% off estimated retailView 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 SHINE
33% off estimated retailView Product: Nike Short Sleeve Polo
Nike
Short Sleeve Polo
Size Medium infants
$16.99 $11.04 35% off with code SHINE
64% off estimated retailView Product: Hanna Andersson Pullover Sweater
Hanna Andersson
Pullover Sweater
Size 110 cm
$16.99 $10.19 40% off with code SHINE
68% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size X-Small youth
$17.99 $12.59 30% off with code SHINE
56% off estimated retailView Product: Reebok Pullover Hoodie
Reebok
Pullover Hoodie
Size X-Small youth
$17.99 $13.49 25% off with code SHINE
67% off estimated retailView Product: Hurley Short Sleeve T-Shirt
Hurley
Short Sleeve T-Shirt
Size X-Large youth
$12.99 $10.39 20% off with code SHINE
60% off estimated retailView Product: An Original Penguin by Munsingwear Short Sleeve Henley
An Original Penguin by Munsingwear
Short Sleeve Henley
Size 18 mo
$10.99 $8.79 20% off with code SHINE
50% off estimated retailView Product: Eve Long Sleeve Button-Down Shirt
Eve
Long Sleeve Button-Down Shirt
Size 9 mo
$10.99 $8.24 25% off with code SHINE
26% off estimated retailView Product: Galaxy by Harvic Short Sleeve T-Shirt
Galaxy by Harvic
Short Sleeve T-Shirt
Size 8
$22.99 $13.79 40% off with code SHINE
69% off estimated retailView Product: Thomas Mason for Crewcuts Long Sleeve Button-Down Shirt
Thomas Mason for Crewcuts
Long Sleeve Button-Down Shirt
Size 4
$16.99 $11.04 35% off with code SHINE
81% off estimated retailView Product: Yacht Club Short Sleeve T-Shirt
Yacht Club
Short Sleeve T-Shirt
Size Large kids
$7.99 $6.39 20% off with code SHINE
27% off estimated retailView Product: Sunrise Kingdom Short Sleeve T-Shirt
Sunrise Kingdom
Short Sleeve T-Shirt
Size Medium youth
$15.99 $10.39 35% off with code SHINE
40% off estimated retailView Product: Ancar Short Sleeve Button-Down Shirt
Ancar
Short Sleeve Button-Down Shirt
Size 18 mo
$6.99 $5.59 20% off with code SHINE
56% off estimated retailView Product: Tailor Vintage Long Sleeve Button-Down Shirt
Tailor Vintage
Long Sleeve Button-Down Shirt
Size 10
$42.99 $30.09 30% off with code SHINE
60% off estimated retailView Product: Smart Blanks Short Sleeve T-Shirt
Smart Blanks
Short Sleeve T-Shirt
Size X-Small youth
$11.99 $8.99 25% off with code SHINE
45% off estimated retail