Rossignol X-6 SC Cross-Country Ski Boots | REI Co-op。Rossignol BC X6 back country cross country ski boots provide excellent support and warmth for winter adventures. These boots feature a Thermo Adjustable Fit for a customized feel, Dual Density construction for stability, and a Micro Fit adjustment system. The zippered lace cover helps keep snow out, while the NNN BC sole ensures compatibility with back country bindings. Please note that the velcro strap on one boot is no longer functional, though the boots still offer a secure fit through the internal lacing and zippered shroud. Perfect for young skiers hitting the trails. **velcro on one boot is not functional