The prAna Mission Trails Short Sleeve T Shirt is ideal for heart-pumping workouts like HIIT, spin, or trail running. If you get your heart rate up for fun (or because it's generally good for you) with running or a HIIT workout, this breathable t-shirt is for you. When sweat starts dripping (because you're clearly the type that hydrates well too), the recycled material is also moisture-wicking. The breathable prAna Mission Trails Short Sleeve T Shirt is made for activities like running or HIIT that get your heart pumping.