When Barry Allen was drenched in chemicals and struck by a bolt of lightning, this created the Speed Force, which creates energy that builds up and is released when the Flash runs. This incredible speed, along with the Flash's heroic behavior has made him one of the most popular superheroes of all time. Everyone will know you are a fan of the "Scarlet Speedster" when you wear this The Flash Tie Dye Logo DC Comics T-Shirt!