This is a Cowboys game issued / worn jersey, no 16 Matt Cassel. The jersey is from the 2012 season and is made by Nike, Cassel played for the Cowboys in 2015, it is not uncommon for the team to use jerseys from previous years. The jersey is a size 44 with short skill cut sleeves. The name is sewn on a nameplate then sewn to the jersey.
The numbers are sewn on, as well. The item "2012 Dallas Cowboys Game Issued Jersey (Matt Cassel)" is in sale since Friday, October 30, 2020. This item is in the category "Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Football-NFL\Jerseys". The seller is "packerfan05" and is located in Miami, Oklahoma. This item can be shipped to United States.