 The Quackstone Pro is our modern view on what an approach shoe should be. It's taking everything from a pure trial running shoe, but adding all the features that you need for approach and scrambling out in the mountains. The Boafi system for quick and easy adjustments in action. Light based technology from Vibram, giving you all diabetes to climb and scramble on rocky terrain. We are trying to go fast and light. With lighter materials we have the chance to dream bigger.