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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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![Art Class Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611638276/complimentary.jpg)
![Art Class Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611638160/complimentary.jpg)
Art Class
Long Sleeve Button-Down Shirt
Size 18
$14.99 $8.24 45% off with code GOBIG
44% off estimated retail![Generra Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611061274/complimentary.jpg)
![Generra Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611061202/complimentary.jpg)
Generra
Short Sleeve T-Shirt
Size Small kids
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Under Armour Long Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610402457/complimentary.jpg)
![Under Armour Long Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610402350/complimentary.jpg)
Under Armour
Long Sleeve T-Shirt
Size Medium kids
$13.99 $7.69 45% off with code GOBIG
48% off estimated retail![Gap Kids Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610404896/complimentary.jpg)
![Gap Kids Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610404769/complimentary.jpg)
Gap Kids
Short Sleeve Button-Down Shirt
Size 8
$14.99 $8.24 45% off with code GOBIG
44% off estimated retail![Under Armour Active T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611209359/complimentary.jpg)
![Under Armour Active T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611209315/complimentary.jpg)
Under Armour
Active T-Shirt
Size Medium kids
$18.99 $10.44 45% off with code GOBIG
53% off estimated retail![Under Armour Short Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/611208505/complimentary.jpg)
![Under Armour Short Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/611208460/complimentary.jpg)
Under Armour
Short Sleeve Polo
Size Medium youth
$19.99 $10.99 45% off with code GOBIG
51% off estimated retail![Polo by Ralph Lauren Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610747912/complimentary.jpg)
![Polo by Ralph Lauren Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610747872/complimentary.jpg)
Polo by Ralph Lauren
Short Sleeve T-Shirt
Size 2T
$12.99 $7.14 45% off with code GOBIG
69% off estimated retail![Polo by Ralph Lauren Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/608399428/complimentary.jpg)
![Polo by Ralph Lauren Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/608399328/complimentary.jpg)
Polo by Ralph Lauren
Long Sleeve Button-Down Shirt
Size 6
$14.99 $8.24 45% off with code GOBIG
71% off estimated retail![Ralph Lauren Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611672416/complimentary.jpg)
![Ralph Lauren Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611672327/complimentary.jpg)
Ralph Lauren
Short Sleeve T-Shirt
Size Medium kids
$10.99 $6.04 45% off with code GOBIG
59% off estimated retail![Under Armour Pullover Hoodie (view 2)](https://cf-assets-thredup.thredup.com/assets/611327332/complimentary.jpg)
![Under Armour Pullover Hoodie (view 1)](https://cf-assets-thredup.thredup.com/assets/611327298/complimentary.jpg)
Under Armour
Pullover Hoodie
Size X-Large kids
$27.99 $15.39 45% off with code GOBIG
49% off estimated retail![Champion Pullover Hoodie (view 2)](https://cf-assets-thredup.thredup.com/assets/611184760/complimentary.jpg)
![Champion Pullover Hoodie (view 1)](https://cf-assets-thredup.thredup.com/assets/611184528/complimentary.jpg)
Champion
Pullover Hoodie
Size Medium kids
$18.99 $10.44 45% off with code GOBIG
42% off estimated retail![Polo by Ralph Lauren Zip Up Hoodie (view 2)](https://cf-assets-thredup.thredup.com/assets/611165154/complimentary.jpg)
![Polo by Ralph Lauren Zip Up Hoodie (view 1)](https://cf-assets-thredup.thredup.com/assets/611165100/complimentary.jpg)
Polo by Ralph Lauren
Zip Up Hoodie
Size 12 mo
$21.99 $12.09 45% off with code GOBIG
66% off estimated retail![Strasburg Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611193488/complimentary.jpg)
![Strasburg Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611193423/complimentary.jpg)
Strasburg
Long Sleeve Button-Down Shirt
Size 12
$20.99 $11.54 45% off with code GOBIG
67% off estimated retail![Jerry Leigh Apparel Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611319290/complimentary.jpg)
![Jerry Leigh Apparel Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611319277/complimentary.jpg)
Jerry Leigh Apparel
Short Sleeve T-Shirt
Size Medium youth
$8.99 $4.94 45% off with code GOBIG
43% off estimated retail![Abercrombie & Fitch Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611672883/complimentary.jpg)
![Abercrombie & Fitch Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611672837/complimentary.jpg)
Abercrombie & Fitch
Short Sleeve T-Shirt
Size Large kids
$13.99 $7.69 45% off with code GOBIG
57% off estimated retail![Disney for Baby Gap Sweatshirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611183866/complimentary.jpg)
![Disney for Baby Gap Sweatshirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611183826/complimentary.jpg)
Disney for Baby Gap
Sweatshirt
Size 18-24 mo
$14.99 $8.24 45% off with code GOBIG
48% off estimated retail![maingate Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610824126/complimentary.jpg)
![maingate Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610824080/complimentary.jpg)
maingate
Short Sleeve T-Shirt
Size Small youth
$7.99 $4.39 45% off with code GOBIG
27% off estimated retail![Report Collection Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610407278/complimentary.jpg)
![Report Collection Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610407152/complimentary.jpg)
Report Collection
Long Sleeve Button-Down Shirt
Size 14
$16.99 $9.34 45% off with code GOBIG
80% off estimated retail![Nordstrom Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611653584/complimentary.jpg)
![Nordstrom Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611653502/complimentary.jpg)
Nordstrom
Long Sleeve Button-Down Shirt
Size 16
$16.99 $9.34 45% off with code GOBIG
69% off estimated retail![Brooks Brothers Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610406948/complimentary.jpg)
![Brooks Brothers Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610406833/complimentary.jpg)
Brooks Brothers
Long Sleeve Button-Down Shirt
Size Large youth
$11.99 $6.59 45% off with code GOBIG
81% off estimated retail![Under Armour Pullover Hoodie (view 2)](https://cf-assets-thredup.thredup.com/assets/610334583/complimentary.jpg)
![Under Armour Pullover Hoodie (view 1)](https://cf-assets-thredup.thredup.com/assets/610334443/complimentary.jpg)
Under Armour
Pullover Hoodie
Size Large youth
$23.99 $13.19 45% off with code GOBIG
56% off estimated retail![Under Armour Active T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610542963/complimentary.jpg)
![Under Armour Active T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610542783/complimentary.jpg)
Under Armour
Active T-Shirt
Size X-Large youth
$23.99 $13.19 45% off with code GOBIG
56% off estimated retail![Assorted Brands Short Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/611632400/complimentary.jpg)
![Assorted Brands Short Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/611632379/complimentary.jpg)
Assorted Brands
Short Sleeve Polo
Size Small youth
$15.99 $8.79 45% off with code GOBIG
51% off estimated retail![Urban Pipeline Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610718301/complimentary.jpg)
![Urban Pipeline Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610718181/complimentary.jpg)
Urban Pipeline
Short Sleeve T-Shirt
Size Large youth
$6.99 $3.84 45% off with code GOBIG
56% off estimated retail![The North Face Long Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611029434/complimentary.jpg)
![The North Face Long Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611029322/complimentary.jpg)
The North Face
Long Sleeve T-Shirt
Size X-Large youth
$21.99 $12.09 45% off with code GOBIG
50% off estimated retail![O'Neill Long Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611019237/complimentary.jpg)
![O'Neill Long Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611019102/complimentary.jpg)
O'Neill
Long Sleeve T-Shirt
Size X-Large kids
$14.99 $8.24 45% off with code GOBIG
31% off estimated retail![Under Armour Short Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/611252857/complimentary.jpg)
![Under Armour Short Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/611252778/complimentary.jpg)
Under Armour
Short Sleeve Polo
Size X-Large kids
$18.99 $10.44 45% off with code GOBIG
53% off estimated retail![Tommy Bahama Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611245258/complimentary.jpg)
![Tommy Bahama Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611245222/complimentary.jpg)
Tommy Bahama
Short Sleeve T-Shirt
Size 12 mo
$8.99 $4.94 45% off with code GOBIG
50% off estimated retail![Under Armour Short Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/611280997/complimentary.jpg)
![Under Armour Short Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/611280951/complimentary.jpg)
Under Armour
Short Sleeve Polo
Size Large youth
$18.99 $10.44 45% off with code GOBIG
53% off estimated retail![Under Armour 3/4 Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611226305/complimentary.jpg)
![Under Armour 3/4 Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611226236/complimentary.jpg)
Under Armour
3/4 Sleeve T-Shirt
Size Large youth
$21.99 $12.09 45% off with code GOBIG
46% off estimated retail![Vineyard Vines Sweatshirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611355411/complimentary.jpg)
![Vineyard Vines Sweatshirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611355350/complimentary.jpg)
Vineyard Vines
Sweatshirt
Size X-Large kids
$23.99 $13.19 45% off with code GOBIG
64% off estimated retail![Under Armour Short Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/611059238/complimentary.jpg)
![Under Armour Short Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/611059198/complimentary.jpg)
Under Armour
Short Sleeve Polo
Size Small youth
$18.99 $10.44 45% off with code GOBIG
53% off estimated retail![Blue Ginger Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610788266/complimentary.jpg)
![Blue Ginger Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610788241/complimentary.jpg)
Blue Ginger
Short Sleeve Button-Down Shirt
Size 18
$15.99 $8.79 45% off with code GOBIG
67% off estimated retail![Polo by Ralph Lauren Pullover Sweater (view 2)](https://cf-assets-thredup.thredup.com/assets/610482949/complimentary.jpg)
![Polo by Ralph Lauren Pullover Sweater (view 1)](https://cf-assets-thredup.thredup.com/assets/610482903/complimentary.jpg)
Polo by Ralph Lauren
Pullover Sweater
Size 14
$21.99 $12.09 45% off with code GOBIG
65% off estimated retail![Vineyard Vines Long Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/602031888/complimentary.jpg)
![Vineyard Vines Long Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/602031728/complimentary.jpg)
Vineyard Vines
Long Sleeve T-Shirt
Size 12
$10.99 $6.04 45% off with code GOBIG
59% off estimated retail![Polo by Ralph Lauren Short Sleeve Polo (view 2)](https://cf-assets-thredup.thredup.com/assets/611326151/complimentary.jpg)
![Polo by Ralph Lauren Short Sleeve Polo (view 1)](https://cf-assets-thredup.thredup.com/assets/611326141/complimentary.jpg)
Polo by Ralph Lauren
Short Sleeve Polo
Size 8
$16.99 $9.34 45% off with code GOBIG
64% off estimated retail![Vineyard Vines Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/601182219/complimentary.jpg)
![Vineyard Vines Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/601182118/complimentary.jpg)
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 4T
$18.99 $10.44 45% off with code GOBIG
57% off estimated retail![Hanna Andersson Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611069938/complimentary.jpg)
![Hanna Andersson Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611069901/complimentary.jpg)
Hanna Andersson
Short Sleeve T-Shirt
Size 80 cm
$11.99 $6.59 45% off with code GOBIG
36% off estimated retail![Assorted Brands Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611052367/complimentary.jpg)
![Assorted Brands Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611052242/complimentary.jpg)
Assorted Brands
Short Sleeve Button-Down Shirt
Size 100 cm
$10.99 $6.04 45% off with code GOBIG
59% off estimated retail![Assorted Brands Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611051965/complimentary.jpg)
![Assorted Brands Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611051762/complimentary.jpg)
Assorted Brands
Short Sleeve Button-Down Shirt
Size 130 cm
$16.99 $9.34 45% off with code GOBIG
48% off estimated retail![Mommore Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611051417/complimentary.jpg)
![Mommore Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611051291/complimentary.jpg)
Mommore
Short Sleeve Button-Down Shirt
Size 4T
$10.99 $6.04 45% off with code GOBIG
59% off estimated retail![Anthropologie Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/611050880/complimentary.jpg)
![Anthropologie Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/611050699/complimentary.jpg)
Anthropologie
Short Sleeve T-Shirt
Size Large kids
$8.99 $4.94 45% off with code GOBIG
59% off estimated retail![Kamari Klassics Short Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610783756/complimentary.jpg)
![Kamari Klassics Short Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610783693/complimentary.jpg)
Kamari Klassics
Short Sleeve Button-Down Shirt
Size 6
$14.99 $8.24 45% off with code GOBIG
54% off estimated retail![Natural World Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610913694/complimentary.jpg)
![Natural World Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610913648/complimentary.jpg)
Natural World
Short Sleeve T-Shirt
Size 140 cm
$9.99 $5.49 45% off with code GOBIG
69% off estimated retail![Tommy Bahama Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610919192/complimentary.jpg)
![Tommy Bahama Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610919154/complimentary.jpg)
Tommy Bahama
Short Sleeve T-Shirt
Size 18 mo
$8.99 $4.94 45% off with code GOBIG
50% off estimated retail![Just One Year by Carter's Short Sleeve T-Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610297774/complimentary.jpg)
![Just One Year by Carter's Short Sleeve T-Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610297703/complimentary.jpg)
Just One Year by Carter's
Short Sleeve T-Shirt
Size 18 mo
$5.99 $3.29 45% off with code GOBIG
14% off estimated retail![Janie and Jack Long Sleeve Turtleneck (view 2)](https://cf-assets-thredup.thredup.com/assets/610788135/complimentary.jpg)
![Janie and Jack Long Sleeve Turtleneck (view 1)](https://cf-assets-thredup.thredup.com/assets/610788114/complimentary.jpg)
Janie and Jack
Long Sleeve Turtleneck
Size 3
$14.99 $8.24 45% off with code GOBIG
55% off estimated retail![Dot Dot Smile Long Sleeve Button-Down Shirt (view 2)](https://cf-assets-thredup.thredup.com/assets/610785701/complimentary.jpg)
![Dot Dot Smile Long Sleeve Button-Down Shirt (view 1)](https://cf-assets-thredup.thredup.com/assets/610785674/complimentary.jpg)
Dot Dot Smile
Long Sleeve Button-Down Shirt
Size 5
$11.99 $6.59 45% off with code GOBIG
66% off estimated retail