The story of Helly Hansen started in 1877. After many years at sea, norwegian captain Helly Juell Hansen and his wife Maren Margarethe began producing oilskin jackets, trousers, sou'westers and tarpaulins, made from coarse linen soaked in linseed oil. In the 20th century, Helly Hansen made several breakthroughs in product development to complete the layering principle today known as the 3-Layer System™. In 1949 the Helox, a thin sheet of translucent PVC plastic sewn into waterproof coats, took over for the oilbased outerwear and became the must-have protection for outdoor use. With a production of 30,000 coats each month the success was almost immediate.