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Kids' Under Armour Activewear

Power up. Shop the best activewear for kids.

Get 'em into gear that works (and plays) as hard as they do, from Nike, Under Armour, Zella Girl and more.

Kids' Under Armour Activewear

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Under Armour 'Big Logo - Storm' Hoodie (Big Boys)
Under Armour 'Big Logo - Storm' Hoodie (Big Boys)
Under Armour 'Big Logo - Storm' Hoodie (Big Boys)
Under Armour 'Big Logo - Storm' Hoodie (Big Boys)
Under Armour 'NFL Combine - Earn Your Spot' T-Shirt (Big Boys)
Under Armour 'NFL Combine - Earn Your Spot' T-Shirt (Big Boys)
Under Armour 'NFL Combine - Faster' UA Tech™ T-Shirt (Big Boys)
Under Armour 'NFL Combine - Faster' UA Tech™ T-Shirt (Big Boys)
Under Armour 'NFL Combine - Faster' UA Tech™ T-Shirt (Big Boys)
Under Armour 'NFL Combine - Faster' UA Tech™ T-Shirt (Big Boys)
Under Armour 'Big Logo' HeatGear® Raglan Sleeve T-Shirt (Toddler Boys)
Under Armour 'Big Logo' HeatGear® Raglan Sleeve T-Shirt (Toddler Boys)
Under Armour 'Madness' Short Sleeve T-Shirt (Big Boys)
Under Armour 'Madness' Short Sleeve T-Shirt (Big Boys)
Under Armour 'Making It Look Easy' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Making It Look Easy' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour Short Sleeve Graphic T-Shirt (Big Boys)
Under Armour Short Sleeve Graphic T-Shirt (Big Boys)
Under Armour Short Sleeve T-Shirt (Big Boys)
Under Armour Short Sleeve T-Shirt (Big Boys)
Under Armour 'NFL Combine Authentic' Shorts (Big Boys)
Under Armour 'NFL Combine Authentic' Shorts (Big Boys)
Under Armour 'Big Time Hustle' HeatGear® Graphic T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Big Time Hustle' HeatGear® Graphic T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Downtown' French Terry Hoodie (Big Girls)
Under Armour 'Downtown' French Terry Hoodie (Big Girls)
New MarkdownUnder Armour 'Downtown' French Terry Hoodie (Big Girls)Was: $44.99Now: $26.9840% OFF
Under Armour 'LAX' Knit Athletic Shorts (Big Boys)
Under Armour 'LAX' Knit Athletic Shorts (Big Boys)
Under Armour Short Sleeve Graphic T-Shirt (Big Boys)
Under Armour Short Sleeve Graphic T-Shirt (Big Boys)
Under Armour Short Sleeve Graphic T-Shirt (Big Boys)
Under Armour Short Sleeve Graphic T-Shirt (Big Boys)
Under Armour 'Basketball Slash' Charged Cotton® T-Shirt (Big Boys)
Under Armour 'Basketball Slash' Charged Cotton®  T-Shirt (Big Boys)
Under Armour 'Baller' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Baller' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Elevated Armour' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Elevated Armour' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Match Play' Polo (Toddler Boys & Little Boys)
Under Armour 'Match Play' Polo (Toddler Boys & Little Boys)
Under Armour 'Skeleton Dunk' HeatGear® Charged Cotton® T-Shirt (Big Boys)
Under Armour 'Skeleton Dunk' HeatGear® Charged Cotton® T-Shirt (Big Boys)
Under Armour 'Not Lucky' HeatGear® T-Shirt (Big Boys)
Under Armour 'Not Lucky' HeatGear® T-Shirt (Big Boys)
Under Armour 'LAX Icon' HeatGear® T-Shirt (Big Boys)
Under Armour 'LAX Icon' HeatGear® T-Shirt (Big Boys)
Under Armour 'Playmaker' HeatGear® Sandal (Little Kid & Big Kid)
Under Armour 'Playmaker' HeatGear® Sandal (Little Kid & Big Kid)
Under Armour '100% Beast' HeatGear® T-Shirt (Big Boys)
Under Armour '100% Beast' HeatGear® T-Shirt (Big Boys)
Under Armour 'Backboard' HeatGear® Athletic Shorts (Little Boys)
Under Armour 'Backboard' HeatGear® Athletic Shorts (Little Boys)
Under Armour 'Root' AllSeasonGear® Mesh Athletic Pants (Toddler Boys & Little Boys)
Under Armour 'Root' AllSeasonGear® Mesh Athletic Pants (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Eliminator' HeatGear® Shorts (Big Boys)
Under Armour 'Eliminator' HeatGear® Shorts (Big Boys)
Under Armour 'Blaze' AllSeasonGear® Mesh Pants (Toddler Boys & Little Boys)
Under Armour 'Blaze' AllSeasonGear® Mesh Pants (Toddler Boys & Little Boys)
Under Armour 'Swag's Here' HeatGear® Graphic T-Shirt (Big Boys)
Under Armour 'Swag's Here' HeatGear® Graphic T-Shirt (Big Boys)
New MarkdownUnder Armour 'Swag's Here' HeatGear® Graphic T-Shirt (Big Boys)Was: $19.99Now: $14.9825% OFF
Under Armour 'No Love on the Field' HeatGear® T-Shirt & Shorts (Baby Boys)
Under Armour 'No Love on the Field' HeatGear® T-Shirt & Shorts (Baby Boys)
Under Armour 'Root' Pants (Little Boys)
Under Armour 'Root' Pants (Little Boys)
Under Armour 'Root' Mesh Athletic Pants (Toddler Boys & Little Boys)
Under Armour 'Root' Mesh Athletic Pants (Toddler Boys & Little Boys)
Under Armour 'Sonic' HeatGear® Capris (Big Girls)
Under Armour 'Sonic' HeatGear® Capris (Big Girls)
New MarkdownUnder Armour 'Sonic' HeatGear® Capris (Big Girls)Was: $34.99Now: $20.9840% OFF
Under Armour 'BPS Micro G® Pulse II' Running Shoe (Toddler & Little Kid)
Under Armour 'BPS Micro G® Pulse II' Running Shoe (Toddler & Little Kid)
Under Armour 'Armour Up' Fitted HeatGear® Athletic T-Shirt (Big Boys)
Under Armour 'Armour Up' Fitted HeatGear® Athletic T-Shirt (Big Boys)
Under Armour 'Armour Up' Fitted HeatGear® Athletic T-Shirt (Big Boys)
Under Armour 'Armour Up' Fitted HeatGear® Athletic T-Shirt (Big Boys)
Under Armour 'Ignite VII SL' HeatGear® Sandal (Toddler, Little Kid & Big Kid)
Under Armour 'Ignite VII SL' HeatGear® Sandal (Toddler, Little Kid & Big Kid)
Under Armour 'No Love on the Field' HeatGear® Graphic T-Shirt (Big Boys)
Under Armour 'No Love on the Field' HeatGear® Graphic T-Shirt (Big Boys)
Under Armour 'Blaze' Pants (Toddler Boys & Little Boys)
Under Armour 'Blaze' Pants (Toddler Boys & Little Boys)
Under Armour Shorts (Toddler Boys & Little Boys)
Under Armour Shorts (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece - Camo' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece - Camo' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Just Call Me Awesome' HeatGear® Graphic T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Just Call Me Awesome' HeatGear® Graphic T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Storm 2.0' Pants (Big Boys)
Under Armour 'Storm 2.0' Pants (Big Boys)
Under Armour 'BPS Assert V AC' Athletic Shoe (Toddler & Little Kid)
Under Armour 'BPS Assert V AC' Athletic Shoe (Toddler & Little Kid)
Under Armour 'Good Luck' HeatGear® T-Shirt (Big Boys)
Under Armour 'Good Luck' HeatGear® T-Shirt (Big Boys)
Under Armour French Terry Pants (Big Boys)
Under Armour French Terry Pants (Big Boys)
Under Armour French Terry Pants (Big Boys)Was: $39.99Now: $19.9850% OFF
Under Armor 'Charged' AllSeasonGear® Long Sleeve Stretch Henley (Big Boys)
Under Armor 'Charged' AllSeasonGear® Long Sleeve Stretch Henley (Big Boys)
Under Armour HeatGear® Tech Three Quarter Sleeve Sport Shirt (Big Boys)
Under Armour HeatGear® Tech Three Quarter Sleeve Sport Shirt (Big Boys)
Under Armour 'Guts Game Glory' HeatGear® Long Sleeve T-Shirt (Big Boys)
Under Armour 'Guts Game Glory' HeatGear® Long Sleeve T-Shirt (Big Boys)
Under Armour 'All Heart' HeatGear® Graphic T-Shirt (Big Boys)
Under Armour 'All Heart' HeatGear® Graphic T-Shirt (Big Boys)
Under Armour Heart Logo HeatGear® Charged Cotton® V-Neck Tee (Big Girls)
Under Armour Heart Logo HeatGear® Charged Cotton® V-Neck Tee (Big Girls)
Under Armour 'Run This Game' HeatGear® Graphic T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Run This Game' HeatGear® Graphic T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Big Logo' Sport Tank (Big Girls)
Under Armour 'Big Logo' Sport Tank (Big Girls)
Under Armour 'Hero' HeatGear® Pants (Big Boys)
Under Armour 'Hero' HeatGear® Pants (Big Boys)
Under Armour 'Can't Be Stopped' HeatGear® T-Shirt & Mesh Pants (Baby Boys)
Under Armour 'Can't Be Stopped' HeatGear® T-Shirt & Mesh Pants (Baby Boys)
Under Armour 'Armour Fleece' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour 'Armour Fleece' AllSeasonGear® Full Zip Hoodie (Toddler Boys & Little Boys)
Under Armour Hoodie & Shorts (Big Boys)
Under Armour Hoodie & Shorts (Big Boys)
Under Armour Hoodie & Shorts (Big Boys)Items priced $27.99 - $33.74
Under Armour 'UA Tech' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'UA Tech' HeatGear® T-Shirt (Toddler Boys & Little Boys)
Under Armour 'Armour® Fleece' AllSeasonGear® Hoodie (Big Boys)
Under Armour 'Armour® Fleece' AllSeasonGear® Hoodie (Big Boys)
New MarkdownUnder Armour 'Armour® Fleece' AllSeasonGear® Hoodie (Big Boys)Was: $44.99Now: $33.7425% OFF
Under Armour 'Call Me Awesome' HeatGear® T-Shirt & Shorts (Baby Boys)
Under Armour 'Call Me Awesome' HeatGear® T-Shirt & Shorts (Baby Boys)
Under Armour 'Eliminator' HeatGear® Shorts (Big Boys)
Under Armour 'Eliminator' HeatGear® Shorts (Big Boys)
Under Armour Hoodie & Pants (Big Boys)
Under Armour Hoodie & Pants (Big Boys)
Under Armour Hoodie & Pants (Big Boys)Items priced $29.99 - $44.99

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