Evolv Phantom The Phantom was designed for the technical climber who needs equal sensitivity and power from their climbing shoe. The Phantom features two midsoles that act in unison. The first midsole is the avt (abridged variable thickness) midsole, which is an abridged variable thickness plastic midsole that is thicker in the forefoot and thins out to the edges of your toes to provide power and sensitivity.
eBay