The HEIDELSTEIN insulated hardshell jacket has a slightly longer cut for better protection from the wind and weather. The two-way zip and articulated elbows promote good freedom of movement. The TEXAPORE CORE shell fabric makes the jacket waterproof, windproof and very breathable. The jacket is filled with a warm and moisture resistant synthetic fibre insulation made from recycled polyester. Jack Wolfskin Womens Heidelstein Insulated Black