what is the cortex system babolat uses?

im buying either the aero storm or the pure storm and the aero uses a cortex system and the pure doesnt. what does the cortex do?

Babolat claims that the cortex system help reduce the vibration on the racket. I tried it but couldn't tell the different. If the price is the same, I would go with the aero storm just to get all the latest bell and whistle.