RVCA x Ali Rumble Button Up Shirt. Make a statement with the RVCA x Ali Rumble Button Up Shirt, a bold tribute to the greatest of all time. Showcasing a large Muhammad Ali graphic on the front with allover spot graphics, this short sleeve button-up delivers standout style with everyday wearability. Designed with a classic collar neck and full button front, it pairs modern streetwear vibes with timeless tailoring. Finished with a woven RVCA x Muhammad Ali label at the hem, this shirt is a must-have for fans and style seekers alike. 55% Cotton 45% Viscose. Machine wash. Imported.