The Karrimor Short-Sleeve Running Top is perfect for your workouts, designed to keep you cool with breathable mesh inserts. Reflective details then keep you visible in low-light conditions. . . Top. Long sleeves. Crew neck . Breathable mesh panels . Reflective details . Flatlock seams. 100% polyester . Machine washable. Imported. . NOTE: This product is sold in U.S. sizes. While the physical product may display both the U.S. & U.K. sizes on it, please place your order using the U.S. size.