The On Men's Climate Shirt is a game-changer choice for athletes looking for continuous comfort during workouts. It is made with 100% recycled polyester fabric with quick-drying properties that will keep you cool and dry during intense workouts. This shirt is a great choice for cold morning runs thanks to warm Super Dry fabric that will insulate your skin while keeping you fresh and comfortable on long runs or hikes. The On Men's Climate Shirt is designed to allow you to go as long as you can!