The M-Tac Norman fleece jacket is equally suitable for cool and cold weather thanks to WindBlock material and Softshell inserts. In the first case, you can use it as an outer layer, in the second as insulation under a jacket or a park. Made of 100% polyester . The WindBlock membrane grid structure is designed for low and as low temperature conditions as possible so that 80% of body heat is reflected from the surface inward and only 20% (excessive heat during active actions at low temperatures) leaves the membrane grid. Most modern membrane fabrics with surface polyurethane spraying are not designed for extremely low temperatures due to the fact that polyurethane hardens at low temperatures, which subsequently leads to hardening of the fabric as a whole. The consequence of this is the characteristic „rustling” when traveling. WindBlock membrane thermo-fabric does not use polyurethane spraying to protect the membrane, but rather a dense, polyester-structured pile (inside and outside the membrane), which protects the membrane from the effects of low temperatures, abrasion (both inside and outside) and creates an additional warming Windblock air layer inside out. Materials: -WindBlock 295g / m2 -Softshell -Oxdord The YKK company is a world leader in the fastening production. It produces 90% of all fasteners at 71 factories around the world. This is a group of Japanese companies whose trademark was registered almost 70 years ago. YKK is translated from Japanese as „Yoshida’s Factory” – this was the name of the company’s founder, who opened the production of fasteners for clothes in the 1930s. Success was achieved thanks to cooperation with leading clothing brands and appliance of particularly strict quality standards. In addition, for a very long time, the machine for the production of high-quality fasteners was kept in the strictest secret. This helped the company quickly overtake its main competitors. Soft Shell is a garment that protects from bad weather and has a minimum weight and volume. It was developed as a counterpart to conventional clothing, which protects from wind and rain with storm jackets and pants or insulates with fleece and down. Soft Shell makes it possible to achieve maximum effect with a single layer of clothing, replacing three or more layers.