Hillsound Trail Crampon ProHillsounds Trail Crampon Pro is a proven winter traction device for snow and ice travelling over diverse terrain and in severe weather conditions. The integral design of the Pro version has taken the known benefits of ice crampons and combined those elements with an ease of use and flexible mobility to surpass the comfort of conventional crampons. Although it resembles the shape of ice climbing crampons, this Pro version is designed for alpine travel