Boys' Sportswear & Gym Clothing

141 Items

UA Rival Woven
Water-Repellent

UA Rival Woven
Boys' Pants

Price: £27.97 - £34
UA Tech™ Utility

UA Tech™ Utility
Boys' Short Sleeve

Price: £15.97 - £25
UA Zone

UA Zone
Boys' 7" Shorts

Original price: £26, Sale price: £17.97
UA Tech™ Vent Jacquard

UA Tech™ Vent Jacquard
Boys' Shorts

Original price: £26, Sale price: £12.97 - £17.97
UA Vanish Seamless

UA Vanish Seamless
Boys' Short Sleeve

Original price: £31, Sale price: £18.97 - £21.97
Curry Splash

Curry Splash
Boys' Hoodie

Original price: £44, Sale price: £30.97
UA Sportstyle

UA Sportstyle
Boys' Short Sleeve

Price: £10.97 - £19
UA Pursuit 4 AC

UA Pursuit 4 AC
Boys' Pre-School Running Shoes

Original price: £38, Sale price: £22.97 - £26.97
Curry Splash Wordmark

Curry Splash Wordmark
Boys' T-Shirt

Original price: £26, Sale price: £20.97
UA Rival Fleece Colorblock Graphic

UA Rival Fleece Colorblock Graphic
Boys' Hoodie

Original price: £50, Sale price: £29.97 - £34.97
UA Tech™ Woven Wordmark

UA Tech™ Woven Wordmark
Boys' Shorts

Price: £14.97 - £21
Armour Fleece® Pro Utility

Armour Fleece® Pro Utility
Boys' Full Zip

Original price: £60, Sale price: £41.97 - £47.97
UA Rival Fleece Big Logo

UA Rival Fleece Big Logo
Boys' Hoodie

Original price: £40, Sale price: £23.97 - £27.97
Armour Fleece®

Armour Fleece®
Boys' Joggers

Original price: £35, Sale price: £20.97 - £24.97
UA Surge 4 AC

UA Surge 4 AC
Boys' Infant Running Shoes

Price: £15.97 - £27
UA Icon Fleece Taping

UA Icon Fleece Taping
Boys' Hoodie

Price: £29.97 - £45
UA Rogue 5 AL

UA Rogue 5 AL
Boys' Pre-School Running Shoes

Original price: £43, Sale price: £29.97 - £33.97
UA Vanish

UA Vanish
Boys' Shorts

Price: £15.97 - £30
UA Rival Fleece

UA Rival Fleece
Boys' Joggers

Price: £20.97 - £34
UA Magnetico Select 5 FG Jr.

UA Magnetico Select 5 FG Jr.
Boys' Soccer Cleats

Price: £35.97 - £45
Armour Fleece® Pro Utility

Armour Fleece® Pro Utility
Boys' Pants

Original price: £55, Sale price: £32.97
UA Challenger Training

UA Challenger Training
Boys' Pants

Price: £18.97 - £35
UA Unstoppable

UA Unstoppable
Boys' Full-Zip

Original price: £55, Sale price: £27.97 - £38.97
Curry Trend

Curry Trend
Boys' T-Shirt

Original price: £26, Sale price: £20.97

Boys' Sportswear & Gym Clothing

You’ve set your targets. Now it’s all about the grit, the grind, the hard work. Under Armour boys’ sportswear gives you pro-grade gear that helps you train better. Our boys' sports gear and shoes are built with advanced technologies and tough materials that boost your performance and help you train harder, longer and faster. 

We’ve built boys’ gym wear and performancewear for all popular sports, including running, athletics, gym training, football, basketball, and golf. Our range includes all sports wear for boys that you need for every season - including base layers, shorts, t-shirts, tracksuits, jackets, hoodies, shoes, socks, bags and hats. 

Under Armour boys’ sportswear helps you train better because we use professional grade fabrics that let you push your limits. You’ll find tech like HeatGear®, a performance baselayer built for warm weather training, that keeps you cool while letting sweat wick extra fast. For winter sessions, ColdGear® keeps you warm, while remaining highly breathable and without adding bulk. We use UA Storm on many of our boys’ sports clothing - it’s a treatment that keeps you dry, but means our trousers and jackets are still breathable so you can keep training in comfort. 

Our boys' sports shoes boost your performance by using advanced technologies and designs that help you play better. UA Magnetico football boots require zero break-in, so you can get back to training without blisters. We built our boys running shoes using UA HOVR™ cushioning, which is incredibly springy and durable. And our boys’ basketball shoes include tech like UA Flow - a rubberless grip and cushioning system, for fast, lightweight flowing movement across court. 

Browse our performancewear for boys, and find the gear you need to smash your targets.