This past May, we saw many New Era cap contenders step into the Fight Club for dominance in our Top 5. A small super hero made a huge impact with his Big Face 59FIFTY cap, as he gets ready to take on the evil brewing in Marvel’s upcoming “Ant-Man” flick. Toronto-based Legends League made a stand to fight the powers that be, with a collection that comments on important issues that are currently affecting society. Packer Shoes payed homage to baseball’s most iconic rivalry, New York city’s cross town Mets-Yankess subway series. And finally, Pikachu made his long-awaited appearance in the arena, with the highly anticipated Pokémon x New Era Japan collection. Did you catch all of these caps, and what was your favorite release for May 2015? Hit the jump to find out which cap took our number one spot!