A gray suit is the most traditional, which you can wear with a white shirt, a deep navy tie, and formal shoes. (dreamingincashmere.com)
For an affordable price, you'll look fashion - forward in this unique navy tie and help a worthy cause. (bestproducts.com)
The plaid sweater really does the talking, so I normally stick with solids everywhere else, such as the white shirt and plain navy tie. (preppypanache.com)