firecat

http://www.colossalclothing.com/aa.html

Colossal Clothing is proud to be affiliated with American Apparel, the largest and finest clothing maker in North America. All of our garments are made under special arrangement in the American Apparel sweatshop-free facilities, utilizing fair labor practices.

They offer T-shirts, tank tops, polo shirts, hoodies, and jackets to men's size 5XL. They have photos of most sizes on a model of that size.