Easy Entry Loops Practical entry loops and wide-opening designs guarantee that boots can be put on/taken off comfortably. Extended Fit System The dual insole system offers additional fit control. Less volume for slim feet or more space for growing feet. Just add or remove EVA-layer under insole. Fischer Fresh Fischer Fresh puts an end to unpleasant odours, giving you lasting freshness inside the cross country skiing boot with a pleasant smell and feeling inside. Fischer Speed Lock New, revolutionary quick lock with minimum size and weight. Simply pull the laces tight , that's it! The system is safe and reliable. Integral Carbon Chassis Outer sole, insole and side stabilisation elements manufactured from the same sheet of carbon. For previously unattained light weight with optimum stability power transfer. Internal Molded Heel Cap Internal anatomically shaped heel cap. Very light and individually thermoformable. Lace Cover Lace covers for additional protection against the snow and wet conditions and to give you a comfortable warm feeling. Thermo Insole Insole with fleecy top layer and aluminium-lined lower layer for ideal insulation to keep out the cold.