Upper Deck NPN Mail Day: 2013 DUAL Goodwin Champions Mail Day

There is nothing better than getting a unexpected mail day and when that mail day is an Upper Deck NPN (no purchase necessary) mail day, you know it's going to be good. This particular one is from the 2013 Goodwin Champions! This is one of my favorite Upper Deck brands!

When getting this bubble mailer, I found it odd that it was so thick. Come to find out, instead of mailing just one NPN card, they mailed two! They both are great ones as well! Let me know your thoughts.

Have you ever received an Upper Deck NPN mail day? What's the best card you have gotten?