They are very thin and poorly made. The buttons are barely sewn on, and sometimes in the wrong spot. My long sleeved shirt doesn't have a hole cut for the button on the wrist and the sleeves appear to be sewn on incorrectly.

You can see right through it.

If you already ordered them, check them out. They may be better now. But, if not, just send them back. Even if you just get credit, that is better than nothing.