Through punishing, shade-less stretches and sun-soaked miles, the Adizero Running Tee helps you stay fast and focused. The go-to staple is made for speed and distance. Featherlight fabric never weighs you down, while HEAT.RDY maximizes air flow using advanced materials so you can feel cool. Underarm panels and moved side seams help to limit friction and reduce chafing. Made with 100% recycled materials, this product represents just one of our solutions to help end plastic waste.