Some teams occasionally wore their throwbacks in additional games during the season, and the San Francisco 49ers wore them through the Super Bowl. They proved to be so popular that the New York Giants followed the lead of the Jets (who went back to their 1960s logo in 1998) and eventually returned to wearing them full-time, with very slight modifications, in 2000. After the NFL modified its rules to allow teams to wear alternate jerseys in 2002, the San Diego Chargers selected their throwbacks as their third uniforms.