JCPenney is available in China! They even have free delivery for orders over $100.
They list prices in Chinese Yuan, and their prices are about 15% those for comparable shirts here (A dress shirt from JCP is about 125 CNY, a Timberland shirt from a local website is about 700 CNY). And the largest shirts I can find are designed for anorexic dwarves.
Well… I know what I’ll be doing shortly after payday: Buying shirts that fit–and last longer than 3 months.
Hurray for the internet and a global economy!