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 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 - Revolutionary quick lock with minimum size and weight; Injected Exterior Heel Cap - Good heel cradling and robust protection all in one: exterior heel cap for even better power transfer; Lace Cover - Lace covers for additional protection against the snow and wet conditions and to give you a comfortable warm feeling; Thermo Fit - Thermally formable foam cushioning with outstanding thermal insulation - a perfect fit for the individual shape of the foot; Triple F Membrane - Special membrane ensures that conditions inside the boot are perfect: dry, warm and breathable; TURNAMIC Performance - Robust sole for sporty skiing style; Velcro Strap - Fastening element for cuffs and instep straps, easy to handle and adjust