The Z-2 HD(Heavy Duty) is a Three-Layer GORE-TEX® PRO Shell jacket built for the demanding alpine environment. During the development of this jacket, many different versions and details were extensively tested and improved upon by our own staff, including Marcel Hirscher, as well as outside expert skiers. So now we are sure this is going to be the new favourite for the demanding skier, with its perfect fit and excellent skiability.