Polar Stratus is a jacket based on a proven cut that refers to the classic US ARMY fleece model. Like the LIBERTY fleece from Helikona, the jacket has two chest pockets. Another similarity to this fleece are pockets on the sleeves, a high collar, two-way YKK zippers or an additional layer of material on the elbows and arms. The fleece is made of thinner fleece with a weight of 320g / m2. It also has ventilation holes under the arms with a sewn net.