The updated Brooks Ravenna 9 is a lot sleeker and lighter version than previous models. That said, it's still a springy and supportive shoe for runners wanting to energize their runs without sacrificing stability, support or speed.
Webster's Dictionary defines Adrenaline as an "increase in rates of blood circulation, breathing and preparing muscles for exertion." According to Brooks, the definition of Adrenaline is the perfect balance of soft cushion and support. The new Brooks Adrenaline GTS 18 was released in October 2017 and I recently had the opportunity to give it a test run but first let's go over some basic info.