Explore more and ski further in the Rossignol XPLORE XP 12 Ski Boots. From rolling hills to adventurous backcountry routes, the XP 12 boot provides a wide platform and supportive design for exploring untracked snow. Compatible only with the XPLORE binding, it offers more mobility for touring and increased control for descents. A dual lace system lets you tension the upper and lower boot independently to suit the terrain and conditions. Unmatched Stability and Control Springpin(TM) binding technology and a purpose-built backcountry sole offer unmatched stability and control for touring and making turns Quick, Easy Lace Tensioning Dual speed lace system lets you quickly adjust upper and lower boot independently for just the right fit to match the terrain Details- SKU: RIL3920000 Construction - Heel Internal heel counter Construction - Upper Cuff Internal Upper cuff Lacing System Double quick lacing Size Conversion 36-48 Sole Xplore sole details.label.weight 1580 g/pair ( size42) Technology- XPLORE SOLE A new generation of Back country sole for more stability, control ans easy ness. Wider and stiffer in torsion this sole is a kind of revolution in the BC milieu.