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Boys' Shirts & Tops

293 Items

UA Matchplay Stripe

UA Matchplay Stripe
Little Boys' Polo

Original price: $32, Sale price: $26.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Rival Heavyweight

UA Rival Heavyweight
Boys' T-Shirt Hoodie

Original price: $35, Sale price: $29.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Logo Locker

UA Logo Locker
Little Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Freedom Military

UA Freedom Military
Boys' Short Sleeve

Original price: $20, Sale price: $14.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Rave Logo

UA Rave Logo
Little Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Tech™ Team
New Colors

UA Tech™ Team
Boys' Polo

Original price: $30, Sale price: $22.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Tech™ Logo Fill

UA Tech™ Logo Fill
Little Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL
Project Rock Open 24 Hours

Project Rock Open 24 Hours
Boys' Short Sleeve

Original price: $30, Sale price: $14.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Freedom Flag

UA Freedom Flag
Boys' T-Shirt

Original price: $20, Sale price: $18.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Baseball Short Sleeve
new

UA Baseball Short Sleeve
Boys' Hoodie

Original price: $40, Sale price: $33.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Tech™ Mitt

UA Tech™ Mitt
Little Boys' Short Sleeve

Original price: $20, Sale price: $14.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Snow Days Off

UA Snow Days Off
Boys' Short Sleeve

Original price: $20, Sale price: $14.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Deep Ocean Camo UPF

UA Deep Ocean Camo UPF
Boys' Long Sleeve

Original price: $38, Sale price: $31.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Tech™ Rye Collegiate

UA Tech™ Rye Collegiate
Kids' Short Sleeve

Original price: $40, Sale price: $33.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Printed

UA Printed
Little Boys' Short Sleeve Polo

Original price: $32, Sale price: $26.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Striped

UA Striped
Little Boys' Short Sleeve

Original price: $22, Sale price: $18.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Baseball Bear

UA Baseball Bear
Boys' Short Sleeve

Original price: $20, Sale price: $14.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Logo Locker

UA Logo Locker
Toddler Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Baseball
UA Exclusive

UA Baseball
Boys' Short Sleeve

Original price: $25, Sale price: $20.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Mountain Logo

UA Mountain Logo
Boys' Short Sleeve

Original price: $22, Sale price: $18.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Freedom Sailfish

UA Freedom Sailfish
Little Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Be A Good Sport

UA Be A Good Sport
Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Fish Print

UA Fish Print
Boys' Button-Front Shirt

Original price: $36, Sale price: $30.97
Extra 40% Off Outlet Use Code SEMIANNUAL
UA Let's Go

UA Let's Go
Little Boys' Short Sleeve

Original price: $20, Sale price: $16.97
Extra 40% Off Outlet Use Code SEMIANNUAL

Game-Changing Boys’ Tops

Under Armour changed the game by swapping out heavy, sweat-drenched T-shirts for ones that wicked sweat, dried fast, and stayed light so they wouldn’t weigh you down. From our HeatGear® baselayers to polos, to sweatshirts, our boys’ tops keep you comfortable and focused on your game and training. We make boys’ shirts for every sport. Tank tops for summer pickup games. Long sleeve shirts for boys, good for cool morning practices. Hoodies for boys that are perfect for between-season training, or just hanging out with friends. Plus, baselayers to wear under uniforms, and even graphic T’s that represent the work you’re putting in day in and day out to be better.

When you train, it’s the little details that make a difference. Correct form on a lift. Proper footing on the field.. With boys’ Under Armour shirts, it’s the details that make them pop. Check out boys’ workout shirts with UA Tech™ fabric that’s made to stay light, loose, and keep you cool with a natural feel. Other options with ColdGear® or HeatGear® help you stay warm in the cold and cool in the heat, serving as the perfect baselayer under your gear.

Get the classic feeling of fleece, just better. Hoodies for boys with Armour Fleece® are our original replacement for that old-school fleece. They’re light, incredibly warm, and stretch so you can move comfortably. Pair your long sleeve shirts for boys and other boys’ workout shirts with lightweight shorts or joggers and sweatpants. And, check out accessories like boys’ socks that help keep your feet cool and dry even during the hardest workouts.