Jos. A. Bank offers its Jos. A. Bank Men's David Leadbetter Stays Cool Polo in Blue for $19.97 plus $8 for shipping. That's $80 off list and the lowest total price we could find, although we saw a different color for $2 less last week. It's available in sizes M to XXL.
There's a less expensive way, and then there's the way that works for you. The two may not be the same.