Boys' Sportswear & Gym Clothing

148 Items

UA Halo Runner

UA Halo Runner
Kids' Grade School Running Shoes

Price: £75
Armour Fleece® Pro Utility

Armour Fleece® Pro Utility
Boys' Full Zip

Original price: £60, Sale price: £35.97
UA Matchplay

UA Matchplay
Boys' Pants

Price: £50
UA Unstoppable Woven

UA Unstoppable Woven
Boys' Joggers

Price: £38.97 - £50
UA Matchplay

UA Matchplay
Boys' Shorts

Price: £40
UA Essential Runner

UA Essential Runner
Pre-School Shoes

Original price: £33, Sale price: £19.97 - £22.97
UA Rival Fleece

UA Rival Fleece
Boys' Hoodie

Price: £27.97 - £38
UA Surge 4 AC

UA Surge 4 AC
Boys' Infant Running Shoes

Price: £15.97 - £27
UA Challenger Training

UA Challenger Training
Boys' ¼ Zip

Price: £21.97 - £38
UA Challenger Training

UA Challenger Training
Boys' Pants

Price: £18.97 - £35
UA Rogue 5

UA Rogue 5
Boys' Running Shoes

Original price: £45, Sale price: £31.97
UA Vanish Seamless

UA Vanish Seamless
Boys' Short Sleeve

Original price: £31, Sale price: £21.97
UA Essential
6-pack

UA Essential
Kids' 6-Pack No-Show Socks

Price: £20
UA Locker V

UA Locker V
Boys' Slides

Price: £16
UA Training Cotton

UA Training Cotton
Kids' 6-Pack Crew Socks

Price: £18
Curry Splash Wordmark

Curry Splash Wordmark
Boys' T-Shirt

Original price: £26, Sale price: £20.97
UA Insulated

UA Insulated
Kids' Gloves

Price: £31
UA Rival Fleece

UA Rival Fleece
Boys' Suit

Original price: £70, Sale price: £34.97
Curry Signature

Curry Signature
Boys' Shorts

Original price: £38, Sale price: £27.97
Armour Fleece® Retro Graphic

Armour Fleece® Retro Graphic
Boys' Hoodie

Original price: £35, Sale price: £20.97
UA Storm

UA Storm
Kids' Liner Gloves

Price: £18
UA Tech™ Utility

UA Tech™ Utility
Boys' ¼ Zip

Price: £24.97 - £35
UA Rival Fleece

UA Rival Fleece
Boys' Shorts

Price: £27

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.