The Precision Lock System guarantees precise power transmission and maximum rigidity in how it allows all boot components to work together as one unit. You get uncompromising skiing. At the same time, the ergonomic shape and the boot's lightness makes for singular performance on the ascent. The so-called "snow-dynamic" concept with its streamlined buckles and elimination of lateral protrusions ensures little speed loss as well as minimal points of resistance and thus maximum penetration. In addition, the Master Step Insert enables easier entry by 50% as well as maximum mechanical loads with freeride bindings set to a release value (Z value) of 16.