The Oakland A’s unveiled a Kelly Green alternate jersey today that will be worn by the team during every Friday home game in 2018. The jersey , which includes “Oakland” on the front, serves as a nod to the team’s rich history, as Kelly Green became one of the team’s colors in 1961. The A’s transitioned to solid Kelly Green jerseys in 1972.

The Kelly Green jersey is also part of the team’s new initiative, “Green Fridays.” Friday home games will feature enhanced ballpark entertainment, DJs, and more. The A’s encourage fans to show their team pride by wearing green every Friday.