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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: Tea Long Sleeve Button-Down Shirt
Tea
Long Sleeve Button-Down Shirt
Size 4
$16.99 $12.74 25% off with code THANKU
59% off estimated retailView Product: Armani Junior Long Sleeve Button-Down Shirt
Armani Junior
Long Sleeve Button-Down Shirt
Size 12
$66.99 $40.19 40% off with code THANKU
66% off estimated retailView Product: Sonic The Hedgehog Pullover Hoodie
Sonic The Hedgehog
Pullover Hoodie
Size 6
$13.99 $10.49 25% off with code THANKU
36% off estimated retailView Product: Crewcuts Short Sleeve T-Shirt
Crewcuts
Short Sleeve T-Shirt
Size Small infants
$7.99 $6.39 20% off with code THANKU
63% off estimated retailView Product: Crewcuts Short Sleeve Button-Down Shirt
Crewcuts
Short Sleeve Button-Down Shirt
Size 12
$16.99 $11.89 30% off with code THANKU
65% off estimated retailView Product: Tea Short Sleeve Button-Down Shirt
Tea
Short Sleeve Button-Down Shirt
Size 12
$14.99 $11.24 25% off with code THANKU
59% off estimated retailView Product: Vans Long Sleeve T-Shirt
Vans
Long Sleeve T-Shirt
Size Medium youth
$10.99 $8.79 20% off with code THANKU
59% off estimated retailView Product: Armani Junior Short Sleeve Button-Down Shirt
Armani Junior
Short Sleeve Button-Down Shirt
Size 6
$31.99 $20.79 35% off with code THANKU
83% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 2T
$14.99 $11.99 20% off with code THANKU
76% off estimated retailView Product: Florence Eiseman Long Sleeve Polo
Florence Eiseman
Long Sleeve Polo
Size 9 mo
$9.99 $7.49 25% off with code THANKU
86% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 8
$17.99 $11.69 35% off with code THANKU
67% off estimated retailView Product: Gymboree Short Sleeve Button-Down Shirt
Gymboree
Short Sleeve Button-Down Shirt
Size 18-24 mo
$7.99 $6.39 20% off with code THANKU
70% off estimated retailView Product: Popsugar x Old Navy Pullover Hoodie
Popsugar x Old Navy
Pullover Hoodie
Size 10
$13.99 $10.49 25% off with code THANKU
68% off estimated retailView Product: Hanna Andersson Long Sleeve Button-Down Shirt
Hanna Andersson
Long Sleeve Button-Down Shirt
Size 8
$19.99 $13.99 30% off with code THANKU
57% off estimated retailView Product: Joules Long Sleeve Button-Down Shirt
Joules
Long Sleeve Button-Down Shirt
Size 9
$29.99 $20.99 30% off with code THANKU
72% off estimated retailView Product: Crewcuts Short Sleeve T-Shirt
Crewcuts
Short Sleeve T-Shirt
Size Large youth
$12.99 $9.74 25% off with code THANKU
60% off estimated retailView Product: Perry Ellis Short Sleeve Polo
Perry Ellis
Short Sleeve Polo
Size Medium kids
$11.99 $9.59 20% off with code THANKU
70% off estimated retailView Product: Rockets of Awesome Pullover Sweater
Rockets of Awesome
Pullover Sweater
Size 8
$17.99 $11.69 35% off with code THANKU
67% off estimated retailView Product: Nordstrom Long Sleeve Button-Down Shirt
Nordstrom
Long Sleeve Button-Down Shirt
Size 6
$16.99 $12.74 25% off with code THANKU
69% off estimated retailView Product: Class Club Long Sleeve Button-Down Shirt
Class Club
Long Sleeve Button-Down Shirt
Size 7
$10.99 $8.79 20% off with code THANKU
66% off estimated retailView Product: Givenchy 4-G Logo Camo Sweatshirt
Givenchy
4-G Logo Camo Sweatshirt
Size 3
$113.99 $57.00 50% off with code THANKU
59% off estimated retailView Product: Gap Kids Pullover Sweater
Gap Kids
Pullover Sweater
Size X-Large kids
$15.99 $12.79 20% off with code THANKU
62% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Small youth
$22.99 $14.94 35% off with code THANKU
58% off estimated retailView Product: Jumping Beans Long Sleeve Button-Down Shirt
Jumping Beans
Long Sleeve Button-Down Shirt
Size 3T
$6.99 $5.59 20% off with code THANKU
61% off estimated retailView Product: Cuddly Hugs Short Sleeve T-Shirt
Cuddly Hugs
Short Sleeve T-Shirt
Size 24 mo
$4.99 $3.99 20% off with code THANKU
28% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 12
$20.99 $12.59 40% off with code THANKU
61% off estimated retailView Product: Lee Cooper Short Sleeve T-Shirt
Lee Cooper
Short Sleeve T-Shirt
Size 15
$147.99 $74.00 50% off with code THANKU
81% off estimated retailView Product: Bonpoint Long Sleeve Button-Down Shirt
Bonpoint
Long Sleeve Button-Down Shirt
Size 8
$43.99 $26.39 40% off with code THANKU
79% off estimated retailView Product: Joules Long Sleeve Button-Down Shirt
Joules
Long Sleeve Button-Down Shirt
Size 9
$42.99 $27.94 35% off with code THANKU
60% off estimated retailView Product: Ralph Lauren Short Sleeve Button-Down Shirt
Ralph Lauren
Short Sleeve Button-Down Shirt
Size 18 mo
$8.99 $7.19 20% off with code THANKU
71% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 6
$14.99 $11.99 20% off with code THANKU
76% off estimated retailView Product: Bonpoint Long Sleeve Button-Down Shirt
Bonpoint
Long Sleeve Button-Down Shirt
Size 12
$31.99 $19.19 40% off with code THANKU
82% off estimated retailView Product: Vineyard Vines Long Sleeve T-Shirt
Vineyard Vines
Long Sleeve T-Shirt
Size 6
$15.99 $9.59 40% off with code THANKU
40% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 18
$17.99 $9.89 45% off with code THANKU
67% off estimated retailView Product: Kids Headquarters Pullover Hoodie
Kids Headquarters
Pullover Hoodie
Size 6 mo
$8.99 $7.19 20% off with code THANKU
40% off estimated retailView Product: Assorted Brands Long Sleeve Button-Down Shirt
Assorted Brands
Long Sleeve Button-Down Shirt
Size 7
$12.99 $5.20 60% off with code THANKU
70% off estimated retailView Product: Janie and Jack Zip Up Hoodie
Janie and Jack
Zip Up Hoodie
Size 3-6 mo
$13.99 $11.19 20% off with code THANKU
61% off estimated retailView Product: Cole By Sweet Kids Long Sleeve Button-Down Shirt
Cole By Sweet Kids
Long Sleeve Button-Down Shirt
Size 6
$10.99 $8.79 20% off with code THANKU
50% off estimated retailView Product: 191 Unlimited Long Sleeve Button-Down Shirt
191 Unlimited
Long Sleeve Button-Down Shirt
Size Small youth
$18.99 $13.29 30% off with code THANKU
70% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve Polo
Polo by Ralph Lauren
Short Sleeve Polo
Size 4
$11.99 $8.99 25% off with code THANKU
71% off estimated retailView Product: Crewcuts Outlet Long Sleeve Button-Down Shirt
Crewcuts Outlet
Long Sleeve Button-Down Shirt
Size 10
$11.99 $9.59 20% off with code THANKU
63% off estimated retailView Product: Polo by Ralph Lauren Short Sleeve Polo
Polo by Ralph Lauren
Short Sleeve Polo
Size Medium kids
$13.99 $10.49 25% off with code THANKU
70% off estimated retailView Product: Eddie Bauer Pullover Hoodie
Eddie Bauer
Pullover Hoodie
Size Medium tots
$13.99 $10.49 25% off with code THANKU
61% off estimated retailView Product: Crewcuts Long Sleeve Button-Down Shirt
Crewcuts
Long Sleeve Button-Down Shirt
Size 10
$19.99 $14.99 25% off with code THANKU
69% off estimated retailView Product: Gap Kids Outlet Long Sleeve Button-Down Shirt
Gap Kids Outlet
Long Sleeve Button-Down Shirt
Size Small youth
$11.99 $9.59 20% off with code THANKU
55% off estimated retailView Product: Bold Blue Long Sleeve Button-Down Shirt
Bold Blue
Long Sleeve Button-Down Shirt
Size Medium youth
$7.99 $6.39 20% off with code THANKU
63% off estimated retailView Product: Florence Eiseman Short Sleeve Polo
Florence Eiseman
Short Sleeve Polo
Size 9 mo
$13.99 $9.79 30% off with code THANKU
81% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Medium youth
$18.99 $13.29 30% off with code THANKU
53% off estimated retailView Product: Monnalisa Long Sleeve Button-Down Shirt
Monnalisa
Long Sleeve Button-Down Shirt
Size 18 mo
$11.99 $8.99 25% off with code THANKU
90% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 4
$14.99 $11.99 20% off with code THANKU
76% off estimated retailView Product: Hanna Andersson Pullover Sweater
Hanna Andersson
Pullover Sweater
Size 2T
$28.99 $20.29 30% off with code THANKU
46% off estimated retailView Product: Fadedgear Long Sleeve Button-Down Shirt
Fadedgear
Long Sleeve Button-Down Shirt
Size 5
$9.99 $7.99 20% off with code THANKU
56% off estimated retailView Product: Quiksilver Long Sleeve Button-Down Shirt
Quiksilver
Long Sleeve Button-Down Shirt
Size 7
$19.99 $14.99 25% off with code THANKU
54% off estimated retailView Product: SpearmintLove Long Sleeve T-Shirt
SpearmintLove
Long Sleeve T-Shirt
Size Newborn
$10.99 $8.79 20% off with code THANKU
50% off estimated retailView Product: Rafael Long Sleeve Button-Down Shirt
Rafael
Long Sleeve Button-Down Shirt
Size 12
$11.99 $9.59 20% off with code THANKU
72% off estimated retailView Product: Gap Kids Short Sleeve Button-Down Shirt
Gap Kids
Short Sleeve Button-Down Shirt
Size 6
$9.99 $7.99 20% off with code THANKU
63% off estimated retailView Product: Tea Long Sleeve Button-Down Shirt
Tea
Long Sleeve Button-Down Shirt
Size 4T
$16.99 $12.74 25% off with code THANKU
59% off estimated retailView Product: Spring Notion Long Sleeve Button-Down Shirt
Spring Notion
Long Sleeve Button-Down Shirt
Size 6
$12.99 $10.39 20% off with code THANKU
70% off estimated retailView Product: Under Armour Short Sleeve T-Shirt
Under Armour
Short Sleeve T-Shirt
Size X-Small youth
$13.99 $10.49 25% off with code THANKU
48% off estimated retailView Product: Hanna Andersson Long Sleeve T-Shirt
Hanna Andersson
Long Sleeve T-Shirt
Size X-Large youth
$10.99 $8.79 20% off with code THANKU
42% off estimated retailView Product: Gap Long Sleeve Button-Down Shirt
Gap
Long Sleeve Button-Down Shirt
Size 6
$12.99 $10.39 20% off with code THANKU
60% off estimated retailView Product: Crewcuts Long Sleeve Henley
Crewcuts
Long Sleeve Henley
Size Small youth
$17.99 $14.39 20% off with code THANKU
72% off estimated retailView Product: Crewcuts Outlet Long Sleeve Button-Down Shirt
Crewcuts Outlet
Long Sleeve Button-Down Shirt
Size 6
$14.99 $11.99 20% off with code THANKU
54% off estimated retailView Product: Crewcuts Long Sleeve Button-Down Shirt
Crewcuts
Long Sleeve Button-Down Shirt
Size 6
$16.99 $13.59 20% off with code THANKU
73% off estimated retailView Product: Tommy Hilfiger Long Sleeve Button-Down Shirt
Tommy Hilfiger
Long Sleeve Button-Down Shirt
Size 24 mo
$11.99 $9.59 20% off with code THANKU
66% off estimated retailView Product: Champion Pullover Hoodie
Champion
Pullover Hoodie
Size Medium infants
$13.99 $10.49 25% off with code THANKU
36% off estimated retailView Product: Life Is Good Long Sleeve T-Shirt
Life Is Good
Long Sleeve T-Shirt
Size Large kids
$13.99 $11.19 20% off with code THANKU
48% off estimated retailView Product: Ocean + Coast Long Sleeve Button-Down Shirt
Ocean + Coast
Long Sleeve Button-Down Shirt
Size Small infants
$10.99 $8.79 20% off with code THANKU
69% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$22.99 $16.09 30% off with code THANKU
58% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 4T
$16.99 $13.59 20% off with code THANKU
73% off estimated retailView Product: Gap Kids Long Sleeve Button-Down Shirt
Gap Kids
Long Sleeve Button-Down Shirt
Size Small infants
$8.99 $7.19 20% off with code THANKU
66% off estimated retailView Product: Crown & Ivy Long Sleeve Button-Down Shirt
Crown & Ivy
Long Sleeve Button-Down Shirt
Size 12 mo
$9.99 $7.99 20% off with code THANKU
82% off estimated retailView Product: VIVERANO Organic Comfort Long Sleeve T-Shirt
VIVERANO Organic Comfort
Long Sleeve T-Shirt
Size 3-6 mo
$9.99 $7.49 25% off with code THANKU
54% off estimated retailView Product: Crewcuts Long Sleeve Button-Down Shirt
Crewcuts
Long Sleeve Button-Down Shirt
Size 6
$16.99 $13.59 20% off with code THANKU
73% off estimated retailView Product: Little Green Radicals Long Sleeve T-Shirt
Little Green Radicals
Long Sleeve T-Shirt
Size 3-6 mo
$9.99 $7.99 20% off with code THANKU
72% off estimated retailView Product: Vineyard Vines Long Sleeve Button-Down Shirt
Vineyard Vines
Long Sleeve Button-Down Shirt
Size 18
$17.99 $12.59 30% off with code THANKU
67% off estimated retailView Product: Ralph Lauren Long Sleeve Button-Down Shirt
Ralph Lauren
Long Sleeve Button-Down Shirt
Size 4
$13.99 $11.19 20% off with code THANKU
78% off estimated retailView Product: Carter's Short Sleeve Button-Down Shirt
Carter's
Short Sleeve Button-Down Shirt
Size 9 mo
$9.99 $7.99 20% off with code THANKU
52% off estimated retailView Product: Hanna Andersson Long Sleeve Henley
Hanna Andersson
Long Sleeve Henley
Size 80 cm
$8.99 $7.19 20% off with code THANKU
57% off estimated retail