Find cute, cozy baby boy activewear, including active tops, active bottoms and sets. From hoodies and sweatpants to shorts and tanks, Old Navy has sporty styles for active little guys. Discover the latest active wear styles for every season, including warm fleece for winter and smooth, quick-drying nylon for summer fun. Create a complete active outfit with our adorable active sets, featuring classic hoodies and matching active pants. Team-style graphics and appliques give our baby boy active wear irresistible appeal, perfect for future MVPs and little sports fans alike. A winning combo of comfort and style, our baby boys active wear will have your little one looking and feeling like a real champ! With our comfy active tops, active bottoms and active sets, helping baby boys get their game on has never been easier.