Trending Categories
Trending Brands
Cater to your boys' busy lifestyles with affordable activewear from thredUP. Enjoy steep savings with prices up to 90% off estimated retail when you shop our extensive collection of hoodies, tops, shorts, and pants.
2,078 items
Sort by:
View Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$23.99 $16.79 30% off with code HOTDEAL
67% off estimated retailView Product: Under Armour Track Pants
Under Armour
Track Pants
Size Small youth
$22.99 $16.09 30% off with code HOTDEAL
48% off estimated retailView Product: Under Armour Active Pants
Under Armour
Active Pants
Size Large youth
$24.99 $17.49 30% off with code HOTDEAL
48% off estimated retailView Product: Mad Engine Zip Up Hoodie
Mad Engine
Zip Up Hoodie
Size Medium kids
$25.99 $20.79 20% off with code HOTDEAL
36% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$23.99 $16.79 30% off with code HOTDEAL
60% off estimated retailView Product: Star Wars Pullover Hoodie
Star Wars
Pullover Hoodie
Size Medium kids
$16.99 $13.59 20% off with code HOTDEAL
36% off estimated retailView Product: Under Armour Zip Up Hoodie
Under Armour
Zip Up Hoodie
Size X-Large youth
$30.99 $21.69 30% off with code HOTDEAL
58% off estimated retailView Product: Spyder Pullover Hoodie
Spyder
Pullover Hoodie
Size X-Large kids
$24.99 $17.49 30% off with code HOTDEAL
71% off estimated retailView Product: Under Armour Active Pants
Under Armour
Active Pants
Size Large youth
$24.99 $17.49 30% off with code HOTDEAL
48% off estimated retailView Product: Primary Clothing Pullover Hoodie
Primary Clothing
Pullover Hoodie
Size 4
$15.99 $12.79 20% off with code HOTDEAL
71% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$24.99 $17.49 30% off with code HOTDEAL
48% off estimated retailView Product: Star Wars Zip Up Hoodie
Star Wars
Zip Up Hoodie
Size X-Large youth
$20.99 $16.79 20% off with code HOTDEAL
22% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Large youth
$31.99 $22.39 30% off with code HOTDEAL
61% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$25.99 $18.19 30% off with code HOTDEAL
48% off estimated retailView Product: Tek Gear Pullover Hoodie
Tek Gear
Pullover Hoodie
Size Large youth
$18.99 $15.19 20% off with code HOTDEAL
51% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$26.99 $18.89 30% off with code HOTDEAL
60% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Medium youth
$26.99 $18.89 30% off with code HOTDEAL
60% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Large youth
$31.99 $22.39 30% off with code HOTDEAL
52% off estimated retailView Product: Under Armour Sweatpants
Under Armour
Sweatpants
Size Large youth
$25.99 $18.19 30% off with code HOTDEAL
48% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size Small youth
$22.99 $16.09 30% off with code HOTDEAL
72% off estimated retailView Product: Champion Active T-Shirt
Champion
Active T-Shirt
Size X-Small youth
$13.99 $11.19 20% off with code HOTDEAL
52% off estimated retailView Product: Hollywood The Jean People Sweatpants
Hollywood The Jean People
Sweatpants
Size 5
$8.99 $7.19 20% off with code HOTDEAL
42% off estimated retailView Product: Under Armour Active T-Shirt
Under Armour
Active T-Shirt
Size Large youth
$20.99 $14.69 30% off with code HOTDEAL
48% off estimated retailView Product: Crewcuts Outlet Pullover Hoodie
Crewcuts Outlet
Pullover Hoodie
Size 14
$18.99 $15.19 20% off with code HOTDEAL
51% off estimated retailView Product: Under Armour Pullover Hoodie
Under Armour
Pullover Hoodie
Size X-Large youth
$32.99 $23.09 30% off with code HOTDEAL
50% off estimated retailView Product: Active by Old Navy Athletic Shorts
Active by Old Navy
Athletic Shorts
Size 8
$11.99 $9.59 20% off with code HOTDEAL
37% off estimated retailView Product: Active by Old Navy Athletic Shorts
Active by Old Navy
Athletic Shorts
Size 8
$11.99 $9.59 20% off with code HOTDEAL
37% off estimated retailView Product: Under Armour Zip Up Hoodie
Under Armour
Zip Up Hoodie
Size Small youth
$31.99 $22.39 30% off with code HOTDEAL
52% off estimated retailView Product: OshKosh B'gosh Athletic Shorts
OshKosh B'gosh
Athletic Shorts
Size 24 mo
$12.99 $10.39 20% off with code HOTDEAL
35% off estimated retailView Product: OshKosh B'gosh Athletic Shorts
OshKosh B'gosh
Athletic Shorts
Size 24 mo
$12.99 $10.39 20% off with code HOTDEAL
35% off estimated retailView Product: Hanna Andersson Zip Up Hoodie
Hanna Andersson
Zip Up Hoodie
Size 100 cm
$28.99 $20.29 30% off with code HOTDEAL
50% off estimated retailView Product: Under Armour Active Tank
Under Armour
Active Tank
Size Large youth
$20.99 $14.69 30% off with code HOTDEAL
58% off estimated retail