Chromoly steel front and rear railsFront rails are asymetric to optimize fit on modern boots One main horizontal front point with a short secondary one for optimized performance in technical Alpine terrain3 sets of holes for a wide range of bail adjustmentLink between rails with same wide textile strap as the rest of the Harfang line Heel Lever with micro adjustment Comes with Automatic toe bail and semi-auto toe basketTPU Active ABS to prevent snow bailling