Boys' Sportswear & Gym Clothing

151 Items

UA Vibe Woven

UA Vibe Woven
Boys' Windbreaker

Price: £50
UA Unstoppable Woven

UA Unstoppable Woven
Boys' Joggers

Price: £38.97 - £50
UA Vibe Woven

UA Vibe Woven
Boys' Cargo Shorts

Price: £38
UA Ascend

UA Ascend
Boys' Grade School Running Shoes

Price: £37
UA Rival Lightweight

UA Rival Lightweight
Boys' ¼ Zip Hoodie

Price: £38
UA Rival Woven
Water-Repellent

UA Rival Woven
Boys' Pants

Price: £27.97 - £34
UA Ascend AL

UA Ascend AL
Boys' Pre-School Running Shoes

Price: £33
UA Matchplay

UA Matchplay
Boys' Polo

Price: £31
UA Tech™ 2.0

UA Tech™ 2.0
Boys' ½ Zip

Price: £15.97 - £30
UA Surge 4 AC

UA Surge 4 AC
Boys' Infant Running Shoes

Price: £15.97 - £27
UA Logo Blur

UA Logo Blur
Boys' Short Sleeve

Price: £17
UA Vibe Woven

UA Vibe Woven
Boys' Joggers

Price: £45
UA Unstoppable Woven

UA Unstoppable Woven
Boys' Shorts

Price: £45
UA Tech Runner

UA Tech Runner
Grade School Shoes

Price: £50
UA Tech™ Vent Jacquard

UA Tech™ Vent Jacquard
Boys' Short Sleeve

Price: £25
UA Sportstyle

UA Sportstyle
Boys' Short Sleeve

Price: £10.97 - £19
UA Challenger Training

UA Challenger Training
Boys' ¼ Zip

Price: £21.97 - £38
UA Challenger

UA Challenger
Boys' Tracksuit

Price: £32.97 - £55
UA Challenger Training

UA Challenger Training
Boys' Pants

Price: £18.97 - £35
UA Rival Lightweight

UA Rival Lightweight
Boys' Pants

Price: £34
UA Essential Low

UA Essential Low
Boys' Adjustable Cap

Price: £16
UA Rival Fleece

UA Rival Fleece
Boys' Shorts

Price: £27
UA Matchplay

UA Matchplay
Boys' Shorts

Price: £40

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.