Be bold as you tackle your miles in rain or shine with the Saysky Men's Reactive Flow T-Shirt. This technical tee was made with a lightweight polyester that feels soft to the skin while still being flexible. The moisture-wicking and quick-drying properties ensure high breathability with maximum airflow, and the technical construction reduces the fabric's ability to cling to your skin when you break a sweat. Run in the rain with confidence, thanks to a special waterproof treatment. As a unique touch, a water-reactive print appears when the singlet gets wet from sweat, rain, or moisture—and disappears when dry.