Who makes a good WARM Mechanics Style jacket? I had a Big Mac ( ftom J.C. Penny) for many many years that was great but it started to get warn out so I replaced it with another Big Mac from J.C. Penny that looks like the origional but I could tell is a little lighter and it is COLD. I didn't have the heart to throw my old one out and am now to the point of sending my old one out to a seamstress to get a zipper installed and all stiched up, I don't care what it will cost because I am tired of freezing if I can't get a better Mechanic's Style jacket. Who makes a good warm Mechanics Style Jacket? I do not want a different style because the Mechanics Style is not bulky and I can work in it. Thanks!!!