Tap into the Negative Speed Force and control the flow of time around your muscles with the 100% cotton Reverse Flash Symbol Tank Top! Okay, so I don't think you can actually tap into the mystical energies of Professor Zoom/ Reverse Flash but that's one of the side effects of temporal high-jinks. Even without said special powers the Reverse Flash Symbol Tank Top is still a great shirt for those of you out there who fancy the famous Flash villain.