Boys' Sportswear & Gym Clothing

124 Items

Armour Fleece®

Armour Fleece®
Boys' Joggers

Price: £35
UA Matchplay Printed

UA Matchplay Printed
Boys' Polo

Price: £35
UA Rival Fleece Colorblock Graphic

UA Rival Fleece Colorblock Graphic
Boys' Hoodie

Price: £50
HeatGear® Armour
Keeps You Cool

HeatGear® Armour
Boys' Short Sleeve

Price: £22
UA Jet '25 VC

UA Jet '25 VC
Grade School Basketball Shoes

Price: £45
UA Jet '25

UA Jet '25
Grade School Basketball Shoes

Price: £45
UA Surge 4 AC

UA Surge 4 AC
Boys' Pre-School Running Shoes

Price: £29.97 - £33
UA Rival Fleece

UA Rival Fleece
Boys' Hoodie

Price: £27.97 - £40
UA Rival Fleece Big Logo

UA Rival Fleece Big Logo
Boys' Hoodie

Price: £40
UA Unstoppable Woven

UA Unstoppable Woven
Boys' Joggers

Price: £55
UA Icon Fleece Taping

UA Icon Fleece Taping
Boys' Joggers

Price: £30.97 - £44
UA Rival Fleece

UA Rival Fleece
Boys' Full-Zip Hoodie

Price: £44
UA Unstoppable

UA Unstoppable
Boys' Tapered Pants

Original price: £55, Sale price: £38.97
HeatGear® Armour
Keeps You Cool

HeatGear® Armour
Boys' Long Sleeve

Price: £26
UA Brawler 3.0 Tapered

UA Brawler 3.0 Tapered
Boys' Pants

Price: £26
UA Pursuit 4 AC

UA Pursuit 4 AC
Boys' Pre-School Running Shoes

Price: £38
UA Matchplay

UA Matchplay
Boys' Polo

Price: £21.97 - £31
Armour Fleece® Retro Graphic

Armour Fleece® Retro Graphic
Boys' Hoodie

Price: £35
HeatGear® Armour
Keeps You Cool

HeatGear® Armour
Boys' Leggings

Price: £31
UA Rival Fleece

UA Rival Fleece
Boys' Joggers

Price: £35
UA Icon Knit

UA Icon Knit
Boys' Tracksuit

Price: £32.97 - £55
UA Lockdown 7

UA Lockdown 7
Pre-School Basketball Shoes

Price: £37
UA Surge 4 AC

UA Surge 4 AC
Boys' Infant Running Shoes

Price: £18.97 - £27
UA Tech™ Utility Woven

UA Tech™ Utility Woven
Boys' Shorts

Price: £26

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.