This grey 2XU Light Speed camouflage T-shirt is made from super lightweight, moisture-wicking X-LITE fabric. It features a crew neck, short sleeves, mesh ventilation zones and built-in UV protection. It's finished with reflective logos and trims. The speed of light is 299,792,458 meter per second. The only thing ever recorded to be faster was us adding this 2XU T-shirt to our bag.