Boys' Sweaters

ChevronNavigation chevron icon

Shop Boy’s Sweaters at up to 90% off estimated retail! thredUP has a huge selection of gently used Boy’s Sweaters from brands like Gymboree, Baby Gap or Polo by Ralph Lauren at thredUP.

7,633 items
Crewcuts Size 4

View Product: Crewcuts Size 4

Crewcuts

Size 4
$14.99 $64

$10.49 30% off with

Weekend A'la Mer Size 18 mo

View Product: Weekend A'la Mer Size 18 mo

Weekend A'la Mer

Size 18 mo
$8.99 $34

$6.29 30% off with

Janie and Jack Size 6-12 mo

View Product: Janie and Jack Size 6-12 mo

Janie and Jack

Size 6-12 mo
$8.99 $34

$6.29 30% off with

Cat & Jack Size 4T

View Product: Cat & Jack Size 4T

Cat & Jack

Size 4T
$8.99 $21

$6.29 30% off with

Weekend A'la Mer Size 24 mo

View Product: Weekend A'la Mer Size 24 mo

Weekend A'la Mer

Size 24 mo
$8.99 $34

$6.29 30% off with

Gymboree Size 5

View Product: Gymboree Size 5

Gymboree

Size 5
$7.99 $33

$5.59 30% off with

Sport-Tek Size X-Small  kids

View Product: Sport-Tek Size X-Small kids

Sport-Tek

Size X-Small kids
$10.99 $26

$7.69 30% off with

Pumpkin Patch Size 3

View Product: Pumpkin Patch Size 3

Pumpkin Patch

Size 3
$7.99 $34

$5.59 30% off with

Carter's Size 12 mo

View Product: Carter's Size 12 mo

Carter's

Size 12 mo
$7.99 $27

$5.59 30% off with

Janie and Jack Size 6-12 mo

View Product: Janie and Jack Size 6-12 mo

Janie and Jack

Size 6-12 mo
$10.99 $34

$7.69 30% off with

Colosseum Athletics Size 3-6 mo

View Product: Colosseum Athletics Size 3-6 mo

Colosseum Athletics

Size 3-6 mo
$10.99 $27

$7.69 30% off with

Kids By Exist Size X-Large kids

View Product: Kids By Exist Size X-Large kids

Kids By Exist

Size X-Large kids
$11.99 $20

$7.19 40% off with

Baby Gap Size 5

View Product: Baby Gap Size 5

Baby Gap

Size 5
$8.99 $35

$6.29 30% off with

H&M Size 4

View Product: H&M Size 4

H&M

Size 4
$9.99 $32

$6.99 30% off with

Baby Gap Size 12-18 mo

View Product: Baby Gap Size 12-18 mo

Baby Gap

Size 12-18 mo
$8.99 $30

$6.29 30% off with

The Children's Place Size 12-18 mo

View Product: The Children's Place Size 12-18 mo

The Children's Place

Size 12-18 mo
$8.99 $25

$6.29 30% off with

Nautica Size 4T

View Product: Nautica Size 4T

Nautica

Size 4T
$8.99 $34

$6.29 30% off with

Gap Kids Size Small kids

View Product: Gap Kids Size Small kids

Gap Kids

Size Small kids
$15.99 $40

$12.79 20% off with

Tucker + Tate Size 18 mo

View Product: Tucker + Tate Size 18 mo

Tucker + Tate

Size 18 mo
$12.99 $34

$10.39 20% off with

Polo by Ralph Lauren Size 24 mo

View Product: Polo by Ralph Lauren Size 24 mo

Polo by Ralph Lauren

Size 24 mo
$10.99 $45

$8.79 20% off with

Baby Gap Size 4T

View Product: Baby Gap Size 4T

Baby Gap

Size 4T
$11.99 $25

$9.59 20% off with

Jake Size 6

View Product: Jake Size 6

Jake

Size 6
$9.99 $38

$7.99 20% off with

Cat & Jack Size 4

View Product: Cat & Jack Size 4

Cat & Jack

Size 4
$7.99 $21

$6.39 20% off with

Carter's Size 4T

View Product: Carter's Size 4T

Carter's

Size 4T
$13.99 $34

$11.19 20% off with

Gap Kids Size X-Small  kids

View Product: Gap Kids Size X-Small kids

Gap Kids

Size X-Small kids
$12.99 $40

$10.39 20% off with

Tucker + Tate Size 9 mo

View Product: Tucker + Tate Size 9 mo

Tucker + Tate

Size 9 mo
$9.99 $34

$7.99 20% off with

Polo by Ralph Lauren Size 6

View Product: Polo by Ralph Lauren Size 6

Polo by Ralph Lauren

Size 6
$15.99 $60

$12.79 20% off with

Disney x Jumping Beans Size 3T

View Product: Disney x Jumping Beans Size 3T

Disney x Jumping Beans

Size 3T
$8.99 $21

$7.19 20% off with

Cat & Jack Size Small kids

View Product: Cat & Jack Size Small kids

Cat & Jack

Size Small kids
$9.99 $21

$7.99 20% off with

Gap Kids Size 5

View Product: Gap Kids Size 5

Gap Kids

Size 5
$13.99 $40

$11.19 20% off with

Old Navy Size 14
New With Tags BadgeNew With Tags

View Product: Old Navy Size 14

Old Navy

Size 14
$7.99 $19.94

$6.39 20% off with

SONOMA life + style Size 7

View Product: SONOMA life + style Size 7

SONOMA life + style

Size 7
$5.99 $20
The Children's Place Size 3T
New With Tags BadgeNew With Tags

View Product: The Children's Place Size 3T

The Children's Place

Size 3T
$7.99 $25

$6.39 20% off with

O'Neill Size Medium youth

View Product: O'Neill Size Medium youth

O'Neill

Size Medium youth
$18.99 $41

$15.19 20% off with

Cat & Jack Size 3T

View Product: Cat & Jack Size 3T

Cat & Jack

Size 3T
$8.99 $21

$7.19 20% off with

Cherokee Size 4T

View Product: Cherokee Size 4T

Cherokee

Size 4T
$4.99 $13
OshKosh B'gosh Size 6 mo
Rare Find BadgeRare Find

View Product: OshKosh B'gosh Size 6 mo

OshKosh B'gosh

Size 6 mo
$10.99 $34

$8.79 20% off with

Under Armour Size Medium kids

View Product: Under Armour Size Medium kids

Under Armour

Size Medium kids
$19.99 $51

$15.99 20% off with

Cat & Jack Size 18 mo

View Product: Cat & Jack Size 18 mo

Cat & Jack

Size 18 mo
$7.99 $17

$6.39 20% off with

Adidas Size Small kids

View Product: Adidas Size Small kids

Adidas

Size Small kids
$12.99 $43

$10.39 20% off with

Buffalo by David Bitton Size Medium kids

View Product: Buffalo by David Bitton Size Medium kids

Buffalo by David Bitton

Size Medium kids
$14.99 $51

$11.99 20% off with

Crewcuts Outlet Size 4

View Product: Crewcuts Outlet Size 4

Crewcuts Outlet

Size 4
$13.99 $32

$11.19 20% off with

Cherokee Size 3-6 mo
New With Tags BadgeNew With Tags

View Product: Cherokee Size 3-6 mo

Cherokee

Size 3-6 mo
$4.99 $12
Gap Kids Size 6

View Product: Gap Kids Size 6

Gap Kids

Size 6
$13.99 $40

$11.19 20% off with

Nike Size 2T

View Product: Nike Size 2T

Nike

Size 2T
$10.99 $34

$8.79 20% off with

Spotted Zebra Size 10
New With Tags BadgeNew With Tags

View Product: Spotted Zebra Size 10

Spotted Zebra

Size 10
$17.99 $41

$14.39 20% off with

Cat & Jack Size 3-6 mo

View Product: Cat & Jack Size 3-6 mo

Cat & Jack

Size 3-6 mo
$8.99 $22

$7.19 20% off with

Cat & Jack Size 7

View Product: Cat & Jack Size 7

Cat & Jack

Size 7
$10.99 $26

$8.79 20% off with

Assorted Brands Size 130 cm

View Product: Assorted Brands Size 130 cm

Assorted Brands

Size 130 cm
$18.99 $51

$13.29 30% off with

PLACE Sport Size 7

View Product: PLACE Sport Size 7

PLACE Sport

Size 7
$10.99 $26

$7.69 30% off with