This unusual cap was worn by the man considered to be the best closer of all time. Mariano Rivera donned this atypical Yankees camouflage hat when the pinstripes faced the New York Mets on May 27, 2013. The size 7 3/8 New Era hat has Mo's number 42 written under the crown in black marker, and it includes holograms from both MLB and Steiner. Alas, Rivera did not see action in that game, which was won by the Amazins by a 2-1 count.