I’ve got an old Mamot soft shell that I’ve been using for winter yard work like it’s Carhartt. Thing is pretty indestructible. Stacking wood, clearing brush, shoveling dirt and snow, carpentry work, nothing has put so much as a snag in it. Problem is the zipper is now shot. I found out it is made of Schoeller WB-400 fabric. I cant seem to find this in any current jackets. Anyone know where I can or if it has been phased out for something new and improved?