The ATMOS Red line has a similar design profile to the Tour Spec version, but is geared towards fitting a wider spectrum of golfers. The ATMOS has a consistent, smooth feel launch profiles to fit a wide spectrum of swings. The red launch signifies a higher flight and spin and the blue profile provides mid launch and spin performance.
What is the difference between Atmos blue and black?
The red is for the highest launch, and the black is for the lowest launch and features the lowest torque ratings in the ATMOS line. That makes it easier for player to understand the sometimes hard-to-decipher world of shaft performance.