FISCHER RC3 COMBI RACE SKI BOOTS use the following TECHNOLOGIES: - Comfort Guard - Very lightweight, water-repelling insulation material for additional thermal protection in the forefoot and toe area; - Easy Entry Loops - Practical entry loops and wide-opening designs guarantee that boots can be put on/taken off comfortably; - 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; - Hinged Polymer Cuff - Ergonomic molded cuff for remarkable side hold with good freedom of movement to the front and back. Easy to adjust with Velcro fastener. Canting and EVA padding depend on the model; - Lace Cover - Lace covers for additional protection against the snow and wet conditions and to give you a comfortable warm feeling; - Injected Exterior Heel Cap - Good heel cradling and robust protection all in one: exterior heel cap for even better power transfer; - Velcro Strap - Fastening element for cuffs and instep straps, easy to handle and adjust; - Thermo Fit - Thermally formable foam cushioning with outstanding thermal insulation - a perfect fit for the individual shape of the foot. Heat boot to max. 85 degrees C in oven. Step in with socks and tighten laces. Foam adapts automatically. Allow 7-10 min of cooling time; - Triple F Membrane - Special membrane ensures that conditions inside the boot are perfect: dry, warm and breathable; - TURNAMIC Race Classic Sole - Extremely sporty classic sole made from lightweight Pebax or Desmopan enables a lower stand height for more stability. Flex grooves and soft sole flex support the smooth kick.