The Sixton Peak Montana 81156-20 from the Endurance collection is a sturdy, comfortable safety boot. In this variant, the upper is made of greased nubuck leather and there is an inside with Airplus 3D lining, which is pleasantly warm or cooling depending on the outside temperature. Dual Micro heel padding ensures that the shoe fits snugly around the heel, prevents wear and increases wearing comfort. A Dynamic HC control ankle brace and Stabil Active footrest have also been added. These hold the heel in the correct position, provide arch and heel support, and control lateral movement of the ankle. Like every Montana, this boot is also metal-free. The safety toe is made of ultra-light metal-free composite; thermo-insulating and does not conduct electricity, but still offers protection against an impact of up to 200 joules. The Zero (k) anti-perforation intermediate layer is synthetic but at least as effective as steel. The PU/PU outsole is shock-absorbing and, with its SRC standard, offers excellent stability and anti-slip. Conductive WED strips give this shoe anti-static properties. The crawl toe significantly increases the wear resistance of the toe of the shoe. This is particularly useful if work is regularly done where the nose rubs against the ground.