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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: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Medium youth
$19.99 $10.99 45% off with code GOBIG
51% off estimated retailView Product: Gap Kids Short Sleeve T-Shirt
Gap Kids
Short Sleeve T-Shirt
Size Small kids
$9.99 $5.49 45% off with code GOBIG
52% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$24.99 $13.74 45% off with code GOBIG
54% off estimated retailView Product: Hanna Andersson Long Sleeve T-Shirt
Hanna Andersson
Long Sleeve T-Shirt
Size 2T
$10.99 $6.04 45% off with code GOBIG
47% off estimated retailView Product: Isaac Mizrahi New York Long Sleeve Button-Down Shirt
Isaac Mizrahi New York
Long Sleeve Button-Down Shirt
Size 2
$10.99 $6.04 45% off with code GOBIG
62% off estimated retailView Product: Baby Gap Short Sleeve Button-Down Shirt
Baby Gap
Short Sleeve Button-Down Shirt
Size 3
$13.99 $7.69 45% off with code GOBIG
48% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 2T
$10.99 $6.04 45% off with code GOBIG
69% off estimated retailView Product: Polo by Ralph Lauren Long Sleeve Polo
Polo by Ralph Lauren
Long Sleeve Polo
Size 3
$12.99 $7.14 45% off with code GOBIG
69% off estimated retailView Product: Assorted Brands Short Sleeve Jersey
Assorted Brands
Short Sleeve Jersey
Size 3T
$9.99 $5.49 45% off with code GOBIG
44% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 3T
$14.99 $8.24 45% off with code GOBIG
76% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 3T
$15.99 $8.79 45% off with code GOBIG
75% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 2T
$10.99 $6.04 45% off with code GOBIG
69% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 3T
$14.99 $8.24 45% off with code GOBIG
66% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 2T
$11.99 $6.59 45% off with code GOBIG
66% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 3T
$14.99 $8.24 45% off with code GOBIG
76% off estimated retailView Product: Vineyard Vines Long Sleeve T-Shirt
Vineyard Vines
Long Sleeve T-Shirt
Size Medium infants
$6.99 $3.84 45% off with code GOBIG
61% off estimated retailView Product: Under Armour Long Sleeve T-Shirt
Under Armour
Long Sleeve T-Shirt
Size Small infants
$11.99 $6.59 45% off with code GOBIG
33% off estimated retailView Product: Gap Kids Long Sleeve Button-Down Shirt
Gap Kids
Long Sleeve Button-Down Shirt
Size 4
$13.99 $7.69 45% off with code GOBIG
56% off estimated retailView Product: Nomad by Craft + Flow Short Sleeve Button-Down Shirt
Nomad by Craft + Flow
Short Sleeve Button-Down Shirt
Size 5
$6.99 $3.84 45% off with code GOBIG
65% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$20.99 $11.54 45% off with code GOBIG
48% off estimated retailView Product: Vineyard Vines Short Sleeve Button-Down Shirt
Vineyard Vines
Short Sleeve Button-Down Shirt
Size 16
$12.99 $7.14 45% off with code GOBIG
68% off estimated retailView Product: Under Armour Short Sleeve T-Shirt
Under Armour
Short Sleeve T-Shirt
Size Large youth
$12.99 $7.14 45% off with code GOBIG
51% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large kids
$21.99 $12.09 45% off with code GOBIG
46% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$21.99 $12.09 45% off with code GOBIG
46% off estimated retailView Product: Nike Short Sleeve Jersey
Nike
Short Sleeve Jersey
Size Medium youth
$11.99 $6.59 45% off with code GOBIG
55% off estimated retailView Product: Urban Pipeline Short Sleeve Button-Down Shirt
Urban Pipeline
Short Sleeve Button-Down Shirt
Size Medium youth
$12.99 $7.14 45% off with code GOBIG
48% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Small youth
$24.99 $13.74 45% off with code GOBIG
54% off estimated retailView Product: Ralph Lauren Short Sleeve T-Shirt
Ralph Lauren
Short Sleeve T-Shirt
Size Large kids
$8.99 $4.94 45% off with code GOBIG
66% off estimated retailView Product: L.L.Bean Long Sleeve Button-Down Shirt
L.L.Bean
Long Sleeve Button-Down Shirt
Size 5
$11.99 $6.59 45% off with code GOBIG
66% off estimated retailView Product: Crewcuts Outlet Short Sleeve Button-Down Shirt
Crewcuts Outlet
Short Sleeve Button-Down Shirt
Size 6
$8.99 $4.94 45% off with code GOBIG
64% off estimated retailView Product: Ralph Lauren Short Sleeve Button-Down Shirt
Ralph Lauren
Short Sleeve Button-Down Shirt
Size 5
$9.99 $5.49 45% off with code GOBIG
68% off estimated retailView Product: Janie and Jack Long Sleeve Button-Down Shirt
Janie and Jack
Long Sleeve Button-Down Shirt
Size 12-18 mo
$11.99 $6.59 45% off with code GOBIG
69% off estimated retailView Product: Amazon Essentials Short Sleeve Polo
Amazon Essentials
Short Sleeve Polo
Size 2T
$8.99 $4.94 45% off with code GOBIG
35% off estimated retailView Product: Chaps Short Sleeve Button-Down Shirt
Chaps
Short Sleeve Button-Down Shirt
Size 5
$13.99 $7.69 45% off with code GOBIG
58% off estimated retailView Product: Under Armour Short Sleeve Polo
Under Armour
Short Sleeve Polo
Size Small youth
$18.99 $10.44 45% off with code GOBIG
53% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Large youth
$23.99 $13.19 45% off with code GOBIG
56% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Large youth
$24.99 $13.74 45% off with code GOBIG
54% off estimated retailView Product: Polo by Ralph Lauren Active T-Shirt
Polo by Ralph Lauren
Active T-Shirt
Size 10
$11.99 $6.59 45% off with code GOBIG
70% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve Polo
Polo by Ralph Lauren
Short Sleeve Polo
Size 12
$14.99 $8.24 45% off with code GOBIG
68% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 16
$20.99 $11.54 45% off with code GOBIG
67% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Large youth
$25.99 $14.29 45% off with code GOBIG
52% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve Polo
Polo by Ralph Lauren
Short Sleeve Polo
Size 14
$19.99 $10.99 45% off with code GOBIG
58% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve T-Shirt
Polo by Ralph Lauren
Short Sleeve T-Shirt
Size 3
$11.99 $6.59 45% off with code GOBIG
50% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve T-Shirt
Polo by Ralph Lauren
Short Sleeve T-Shirt
Size 10
$13.99 $7.69 45% off with code GOBIG
48% off estimated retailView Product: Real Essentials Active T-Shirt
Real Essentials
Active T-Shirt
Size Medium kids
$10.99 $6.04 45% off with code GOBIG
31% off estimated retailView Product: Hanna Andersson Short Sleeve T-Shirt
Hanna Andersson
Short Sleeve T-Shirt
Size 8
$10.99 $6.04 45% off with code GOBIG
42% off estimated retailView Product: Assorted Brands Short Sleeve Button-Down Shirt
Assorted Brands
Short Sleeve Button-Down Shirt
Size Small kids
$10.99 $6.04 45% off with code GOBIG
59% off estimated retailView Product: Benito & Benita Pullover Sweater
Benito & Benita
Pullover Sweater
Size 150 cm
$11.99 $6.59 45% off with code GOBIG
64% off estimated retailView Product: Hanna Andersson Long Sleeve T-Shirt
Hanna Andersson
Long Sleeve T-Shirt
Size 10
$10.99 $6.04 45% off with code GOBIG
47% off estimated retailView Product: Baby Gap Short Sleeve T-Shirt
Baby Gap
Short Sleeve T-Shirt
Size 12-18 mo
$11.99 $6.59 45% off with code GOBIG
25% off estimated retailView Product: Hanna Andersson Pullover Hoodie
Hanna Andersson
Pullover Hoodie
Size 140 cm
$21.99 $12.09 45% off with code GOBIG
46% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve Polo
Polo by Ralph Lauren
Short Sleeve Polo
Size 8
$15.99 $8.79 45% off with code GOBIG
66% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Medium youth
$19.99 $10.99 45% off with code GOBIG
51% off estimated retailView Product: Under Armour Short Sleeve Polo
Under Armour
Short Sleeve Polo
Size Medium youth
$21.99 $12.09 45% off with code GOBIG
46% off estimated retail