Week 13 in the NFL will feature a unique twist on the league’s rigid uniform policy. For the first time ever, the NFL has given permission to players to wear custom footwear in regular-season games. The #MyCauseMyCleats campaign gives players the chance to design shoes that show their commitment to different charitable causes. Over 500 players — roughly a third of the league — will be taking part in the initiative. Here’s a collection of custom cleats from around the NFL – click on the players’ names to read their stories.