The Kursk by OLANG is crafted from patent leather and polyester with a quilted padding upper and a boiled wool collar for extra durability. Wool lining and felt lining are also equipped with the OLANTEX™ breathable insulating film Italian sole designed to increase grip on snow and ice BLOC™ outsole by OC System, equipped with 16 stainless steel pivoting and folding cleats system with flow channels Grip system featuring stainless steel studs and a framework created with a special, flexible polyurethane that is durable even at the most extreme temperatures Cemented construction from the upper to the sole to retain the shape of the boot and provide additional comfort Additional insole with silver insulating and reflective film Removable insole allows an orthopedic expert to replace it with a foot orthosis, modify and improve the fit of the boot Laces with sturdy metal eyelets and hooks and robust inner zipper with bellows Easy fitting BREATHTEX™ waterproof membrane Comfort zone up to -30°C 1.75" Atheltic sole Sizes ranging from 40 – 47 A simple damp cloth is enough for the maintenance of your boots Easy to maintain, light, and ideal for Canadian winters