The Evolv Phantom finds its balance between being supportive while still maintaining flexibility making it the most powerful shoe in their line. This ultra-performance shoe features NeoFlex, a new technology by Evolv that allows the climber to flex up and maintain compression in a crimped power position. The Dark Spine S gives an extra sensitive heel for equal parts maximum power and sensitivity and all wrapped together in a single pull 6 point closure. This is an excellent choice for advanced climbers who are looking for the best shoe to help them conquer steep sport climb or steep bouldering, inside or out!