I was wondering what the rules are for wearing a sweater with a suit or blazer.
1. Can you wear a sweater under a suit? I'm inclined to say no, but I wanted to check.
2. I'm guessing its okay to wear a sweater under a blazer or sport coat, but I wanted to check. Also, is it okay if the sweater has a collar.
As an example, here is a sweater I have.
Thanks for the help.