Knit ties are certainly classic, that is not debatable. However, I have not worn a knit tie in quite a while, but I decided to break one out earlier this week. I was amazed at how many comments I received about my tie. Older men in particular seem to appreciate the classic nature of the old school knit tie. Many companies offer knit ties, and some of these companies include: Ralph Lauren, Brooks Brothers, J Crew, J Press, etc. In the past, I have been know to mix a knit tie with a suit. Typically, you only see knit ties with blazers and sport coats, but I think it is a good balance of dressy and casual to mix a knit with a suit.