Because it’s fun to switch up the uniform sometimes, Kansas has debuted one of two “vintage” looks for Saturday’s rivalry game against Kansas State in Allen Fieldhouse.

The version Kansas is wearing Saturday is called “CHALK,” as in the Jayhawks’ “Rock Chalk Jayhawk” chant, which has blue outlines with a script “Jayhawks.”

Do not adjust your screen, we're going vintage in a whole new way. http://t.co/iIK5uoia1w pic.twitter.com/TiQAQfvci6 — Kansas Basketball (@KUHoops) January 11, 2014

The second uniform is called “PHOG,” as in KU’s arena that is named after former coach Phog Allen. This version has a white “Kansas” in circus font, outlined in red, arching across the chest with the jersey number below, and is a shoutout to the Jayhawks’ 1988 national championship uniform according to the school athletics website.

Kansas will wear these alternate uniforms intermittently throughout the rest of the season.