Look familiar? It should because this is the OG "Zero Side Effects" shirt. The original monster... the prequel to the popular Zero Side Effects tour shirt. Own this limited edition original that's made of 100% cotton with a modern fit. This shirt is designed to be durable for working on your car as a shade-tree mechanic, a day at the track, or following your wife around the mall. All Combustion Speedwear graphics are created and designed by comedian Christopher Titus.