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Cassius Clay™ 
This t-shirt is a replica of the one that Muhammad Ali, then Cassius Clay, wore in training for his 1964 upset of Sonny Liston in which he won the heavyweight title for the first time. It was a victory that, as Ali famously put it, “shook up the world,” and immediately launched him into that rare stratosphere of superstardom that he would occupy for the rest of his life.

As an artifact, this shirt has heavy resonance in Ali’s development, for immediately after the first Liston fight he would make the announcement that as a member of the Nation of Islam and a devoted follower of Elijah Muhammad, he no longer would be known by his slave name, Cassius Clay. He initially took the name Cassius X in the manner of his mentor, Malcolm X, but soon afterward was given the name “Muhammad Ali” by Elijah Muhammad himself.

The Greatest Collection
No Mas and Worn Free proudly present "The Greatest™ Collection", a series of t-shirts officially licensed by Muhammad Ali Enterprises recreating graphics from Ali's storied life and career. Muhammad Ali's image and name are used with permission of MAE LLC. Cassius Clay is a trademark of MAE LLC."