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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: Polo by Ralph Lauren Pullover Sweater
Polo by Ralph Lauren
Pullover Sweater
Size 10
$18.99 $14.24 25% off with code THRIFT25
70% off estimated retailView Product: Shrimp & Grits Kids Long Sleeve Button-Down Shirt
Shrimp & Grits Kids
Long Sleeve Button-Down Shirt
Size 4T
$16.99 $12.74 25% off with code THRIFT25
69% off estimated retailView Product: Emi Sportswear Green Weekend Long Sleeve T-Shirt
Emi Sportswear Green Weekend
Long Sleeve T-Shirt
Size Medium kids
View Product: Stanley Short Sleeve T-Shirt
Stanley
Short Sleeve T-Shirt
Size X-Small youth
$6.99 $5.24 25% off with code THRIFT25
36% off estimated retailView Product: Adidas Pullover Hoodie
Adidas
Pullover Hoodie
Size Medium kids
$20.99 $15.74 25% off with code THRIFT25
61% off estimated retailView Product: FIRSTS by petit lem Short Sleeve T-Shirt
FIRSTS by petit lem
Short Sleeve T-Shirt
Size 3 mo
$9.99 $7.49 25% off with code THRIFT25
33% off estimated retailView Product: Gap Kids Pullover Hoodie
Gap Kids
Pullover Hoodie
Size Small kids
$18.99 $14.24 25% off with code THRIFT25
55% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$17.99 $13.49 25% off with code THRIFT25
56% off estimated retailView Product: Canadiana Clothing Co. Zip Up Hoodie
Canadiana Clothing Co.
Zip Up Hoodie
Size 12-18 mo
$8.99 $6.74 25% off with code THRIFT25
50% off estimated retailView Product: Kenneth Cole Long Sleeve Button-Down Shirt
Kenneth Cole
Long Sleeve Button-Down Shirt
Size 14
$12.99 $9.74 25% off with code THRIFT25
76% off estimated retailView Product: Baby Gap Pullover Sweater
Baby Gap
Pullover Sweater
Size 18-24 mo
$16.99 $12.74 25% off with code THRIFT25
54% off estimated retailView Product: Tailor Byrd Long Sleeve Button-Down Shirt
Tailor Byrd
Long Sleeve Button-Down Shirt
Size 12
$25.99 $19.49 25% off with code THRIFT25
80% off estimated retailView Product: Hanna Andersson Long Sleeve T-Shirt
Hanna Andersson
Long Sleeve T-Shirt
Size 6-12 mo
$8.99 $6.74 25% off with code THRIFT25
52% off estimated retailView Product: Pagelaurenbaby baby Long Sleeve Henley
Pagelaurenbaby baby
Long Sleeve Henley
Size 6-9 mo
$9.99 $7.49 25% off with code THRIFT25
33% off estimated retailView Product: Miki House Short Sleeve Polo
Miki House
Short Sleeve Polo
Size Medium kids
$15.99 $11.99 25% off with code THRIFT25
67% off estimated retailView Product: Tartine et Chocolat Short Sleeve Polo
Tartine et Chocolat
Short Sleeve Polo
Size 3
$38.99 $29.24 25% off with code THRIFT25
58% off estimated retailView Product: Mamas & Papas Long Sleeve Button-Down Shirt
Mamas & Papas
Long Sleeve Button-Down Shirt
Size 6 mo
$7.99 $5.99 25% off with code THRIFT25
63% off estimated retailView Product: iXtreme Outfitters Zip Up Hoodie
iXtreme Outfitters
Zip Up Hoodie
Size 5
$12.99 $9.74 25% off with code THRIFT25
51% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$19.99 $14.99 25% off with code THRIFT25
51% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$18.99 $14.24 25% off with code THRIFT25
53% off estimated retailView Product: Huntingdon Mills Short Sleeve T-Shirt
Huntingdon Mills
Short Sleeve T-Shirt
Size 6
$9.99 $7.49 25% off with code THRIFT25
37% off estimated retailView Product: Hanna Andersson Long Sleeve Button-Down Shirt
Hanna Andersson
Long Sleeve Button-Down Shirt
Size 6-12 mo
$11.99 $8.99 25% off with code THRIFT25
64% off estimated retailView Product: Under Armour Short Sleeve T-Shirt
Under Armour
Short Sleeve T-Shirt
Size Small youth
$15.99 $11.99 25% off with code THRIFT25
40% off estimated retailView Product: Janie and Jack Long Sleeve Button-Down Shirt
Janie and Jack
Long Sleeve Button-Down Shirt
Size 2T
$12.99 $9.74 25% off with code THRIFT25
66% off estimated retailView Product: Rachel Zoe Short Sleeve Henley
Rachel Zoe
Short Sleeve Henley
Size 3-6 mo
$44.99 $33.74 25% off with code THRIFT25
58% off estimated retailView Product: J.Crew Pullover Hoodie
J.Crew
Pullover Hoodie
Size X-Small youth
$21.99 $16.49 25% off with code THRIFT25
74% off estimated retailView Product: Under Armour Short Sleeve Polo
Under Armour
Short Sleeve Polo
Size Small youth
$16.99 $12.74 25% off with code THRIFT25
58% off estimated retailView Product: Tommy Bahama Short Sleeve T-Shirt
Tommy Bahama
Short Sleeve T-Shirt
Size 24 mo
$8.99 $6.74 25% off with code THRIFT25
50% off estimated retailView Product: Janie and Jack Short Sleeve Button-Down Shirt
Janie and Jack
Short Sleeve Button-Down Shirt
Size 6-12 mo
$10.99 $8.24 25% off with code THRIFT25
71% off estimated retailView Product: Edgehill Collection Short Sleeve Button-Down Shirt
Edgehill Collection
Short Sleeve Button-Down Shirt
Size 12 mo
$6.99 $5.24 25% off with code THRIFT25
74% off estimated retailView Product: 7 For All Mankind Pullover Hoodie
7 For All Mankind
Pullover Hoodie
Size 18 mo
$10.99 $8.24 25% off with code THRIFT25
75% off estimated retailView Product: J.Crew Short Sleeve Button-Down Shirt
J.Crew
Short Sleeve Button-Down Shirt
Size 8
$15.99 $11.99 25% off with code THRIFT25
75% off estimated retailView Product: Crewcuts Pullover Sweater
Crewcuts
Pullover Sweater
Size X-Small kids
$20.99 $15.74 25% off with code THRIFT25
69% off estimated retailView Product: Angel Dear Long Sleeve T-Shirt
Angel Dear
Long Sleeve T-Shirt
Size 0-3 mo
$9.99 $7.49 25% off with code THRIFT25
33% off estimated retailView Product: Under Armour Short Sleeve T-Shirt
Under Armour
Short Sleeve T-Shirt
Size Medium youth
$10.99 $8.24 25% off with code THRIFT25
59% off estimated retailView Product: Van Heusen Short Sleeve Button-Down Shirt
Van Heusen
Short Sleeve Button-Down Shirt
Size Small kids
$8.99 $6.74 25% off with code THRIFT25
55% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$19.99 $14.99 25% off with code THRIFT25
51% off estimated retailView Product: Marvel Short Sleeve T-Shirt
Marvel
Short Sleeve T-Shirt
Size Small kids
$10.99 $8.24 25% off with code THRIFT25
38% off estimated retailView Product: Well Worn Short Sleeve T-Shirt
Well Worn
Short Sleeve T-Shirt
Size X-Small youth
$13.99 $10.49 25% off with code THRIFT25
48% off estimated retailView Product: Michael Kors Long Sleeve Button-Down Shirt
Michael Kors
Long Sleeve Button-Down Shirt
Size 10
$13.99 $10.49 25% off with code THRIFT25
71% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size 6-9 mo
$10.99 $8.24 25% off with code THRIFT25
59% off estimated retailView Product: Ocean + Coast Long Sleeve T-Shirt
Ocean + Coast
Long Sleeve T-Shirt
Size 6 mo
$5.99 $4.49 25% off with code THRIFT25
66% off estimated retailView Product: Isaac Mizrahi New York Long Sleeve Button-Down Shirt
Isaac Mizrahi New York
Long Sleeve Button-Down Shirt
Size 5
$10.99 $8.24 25% off with code THRIFT25
69% off estimated retailView Product: J.Crew Long Sleeve Button-Down Shirt
J.Crew
Long Sleeve Button-Down Shirt
Size X-Small kids
$19.99 $14.99 25% off with code THRIFT25
72% off estimated retailView Product: Janie and Jack Short Sleeve T-Shirt
Janie and Jack
Short Sleeve T-Shirt
Size 6-12 mo
$10.99 $8.24 25% off with code THRIFT25
54% off estimated retailView Product: J.Crew Long Sleeve Button-Down Shirt
J.Crew
Long Sleeve Button-Down Shirt
Size 2
$12.99 $9.74 25% off with code THRIFT25
77% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$19.99 $14.99 25% off with code THRIFT25
51% off estimated retailView Product: Nike Active T-Shirt
Nike
Active T-Shirt
Size X-Small youth
$13.99 $10.49 25% off with code THRIFT25
65% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size X-Small youth
$17.99 $13.49 25% off with code THRIFT25
56% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$16.99 $12.74 25% off with code THRIFT25
58% off estimated retailView Product: Under Armour Short Sleeve T-Shirt
Under Armour
Short Sleeve T-Shirt
Size X-Large youth
$15.99 $11.99 25% off with code THRIFT25
40% off estimated retailView Product: EZPZ Easy Peasy Short Sleeve T-Shirt
EZPZ Easy Peasy
Short Sleeve T-Shirt
Size 18 mo
$9.99 $7.49 25% off with code THRIFT25
72% off estimated retailView Product: TNA Short Sleeve T-Shirt
TNA
Short Sleeve T-Shirt
Size Medium kids
$9.99 $7.49 25% off with code THRIFT25
37% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Large youth
$22.99 $17.24 25% off with code THRIFT25
58% off estimated retailView Product: True Religion Pullover Hoodie
True Religion
Pullover Hoodie
Size Large youth
$19.99 $14.99 25% off with code THRIFT25
77% off estimated retailView Product: Under Armour Short Sleeve Polo
Under Armour
Short Sleeve Polo
Size 9-12 mo
$13.99 $10.49 25% off with code THRIFT25
48% off estimated retailView Product: Gap Kids Short Sleeve T-Shirt
Gap Kids
Short Sleeve T-Shirt
Size Medium kids
$11.99 $8.99 25% off with code THRIFT25
42% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 3
$18.99 $14.24 25% off with code THRIFT25
70% off estimated retailView Product: Gap X Star Wars Pullover Sweater
Gap X Star Wars
Pullover Sweater
Size 4
$21.99 $16.49 25% off with code THRIFT25
61% off estimated retailView Product: Quiksilver Active Tank
Quiksilver
Active Tank
Size X-Large youth
$14.99 $11.24 25% off with code THRIFT25
54% off estimated retailView Product: Lief! Long Sleeve Button-Down Shirt
Lief!
Long Sleeve Button-Down Shirt
Size 110 cm
$8.99 $6.74 25% off with code THRIFT25
75% off estimated retailView Product: Nike Pullover Hoodie
Nike
Pullover Hoodie
Size X-Small youth
$22.99 $17.24 25% off with code THRIFT25
58% off estimated retailView Product: Adidas Pullover Hoodie
Adidas
Pullover Hoodie
Size Medium kids
$18.99 $14.24 25% off with code THRIFT25
65% off estimated retailView Product: Nike Long Sleeve T-Shirt
Nike
Long Sleeve T-Shirt
Size Small kids
$15.99 $11.99 25% off with code THRIFT25
55% off estimated retailView Product: Babe & Tess Long Sleeve Button-Down Shirt
Babe & Tess
Long Sleeve Button-Down Shirt
Size 12 mo
$15.99 $11.99 25% off with code THRIFT25
63% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Large youth
$21.99 $16.49 25% off with code THRIFT25
67% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Small youth
$17.99 $13.49 25% off with code THRIFT25
56% off estimated retailView Product: Under Armour Long Sleeve Polo
Under Armour
Long Sleeve Polo
Size Small youth
$17.99 $13.49 25% off with code THRIFT25
56% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size X-Small kids
$15.99 $11.99 25% off with code THRIFT25
52% off estimated retailView Product: Tom Tailor Long Sleeve Button-Down Shirt
Tom Tailor
Long Sleeve Button-Down Shirt
Size 4
$19.99 $14.99 25% off with code THRIFT25
63% off estimated retailView Product: Marvel Pullover Hoodie
Marvel
Pullover Hoodie
Size X-Large youth
$18.99 $14.24 25% off with code THRIFT25
56% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Small youth
$22.99 $17.24 25% off with code THRIFT25
58% off estimated retailView Product: all in motion Pullover Sweater
all in motion
Pullover Sweater
Size Small kids
$9.99 $7.49 25% off with code THRIFT25
56% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$18.99 $14.24 25% off with code THRIFT25
53% off estimated retailView Product: Timberland Sweatshirt
Timberland
Sweatshirt
Size Medium kids
$16.99 $12.74 25% off with code THRIFT25
80% off estimated retailView Product: The Children's Place Short Sleeve Button-Down Shirt
The Children's Place
Short Sleeve Button-Down Shirt
Size 9-12 mo
$10.99 $8.24 25% off with code THRIFT25
42% off estimated retailView Product: Assorted Brands Short Sleeve Button-Down Shirt
Assorted Brands
Short Sleeve Button-Down Shirt
Size 80 cm
$6.99 $5.24 25% off with code THRIFT25
68% off estimated retailView Product: Joseph Abboud Long Sleeve Button-Down Shirt
Joseph Abboud
Long Sleeve Button-Down Shirt
Size 8
$8.99 $6.74 25% off with code THRIFT25
59% off estimated retailView Product: American Eagle Outfitters Pullover Hoodie
American Eagle Outfitters
Pullover Hoodie
Size Small kids
$17.99 $13.49 25% off with code THRIFT25
50% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Small youth
$25.99 $19.49 25% off with code THRIFT25
52% off estimated retailView Product: Tommy Hilfiger Short Sleeve Polo
Tommy Hilfiger
Short Sleeve Polo
Size 6
$13.99 $10.49 25% off with code THRIFT25
65% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size X-Large youth
$17.99 $13.49 25% off with code THRIFT25
56% off estimated retail