The National Football League, also known as NFL, is the American Football League. The American football league is rather large. The American Football Conference (AFC, American League) and the National Football Conference are the two primary conferences made up of the league's 32 teams (National Football Conference, referred to as NFC, National League). 16 teams from each federation are split up into the East, South, West, and North divisions. Each division contains 4 teams.

For short, we call them offset jerseys. "Copy version of the jersey" denotes that the appearance mimics the player's version, but the fabric, size, and kind of clothes are considerably different from the player's version, according to the straight English translation. The number, the team logo on the player name sleeve (if any), the circle on the sleeve (if any), and the Reebok logo are all offset printed on the very thin fabric of the offset jersey. Contrary to the player version, which is appropriate for protective gear, the offset printing version of the jersey is appropriate for daily wear.

The fan version of the jersey is divided into adult (adult Jersey), youth (Youth Jersey), and women's versions in order to better suit various demographics (Women Jersey). The most popular and default version is the adult one. The youth jersey comes in sizes for kids between the ages of 8 and 10, and the number and NFL logo label are relatively modest. The baby version is less intricate and more basic than the adult version. The women's version of the jersey features a waist trim to better fit a woman's physique. Not described in depth.