I have a winter coat that my Max outgrew at home that I can send to you. I think it's a size small--my Max was about 7 lbs at the time when it fit him. The only problem is that I'm currently at my parents' house and I won't be back home until Nov 25th, which is in about 2 weeks. It's wool and nice and warm for the winter--here's a link of the picture.
http://peepingtomcat.com/petco/6/976.html
You might want to get something now since it's getting colder outside but if you think Max's coat might fit and would like to have it let me know and I can send it to you when I get back.