New Era Cap Company collaborated with Marvel to produce superhero theme MiLB fitted caps November 18th, 2022. The 59FIFTY MiLB caps have various colorways that were inspired by Marvel superheros. The recent release include teams such as the Bowling Green Hot Rods, Buffalo Bison (coldest), Erie SeaWolves, Fort Myers Mighty Mussels, Harrisburg Senators and more! Approximately 42 fitteds were released (don't quote me on that) as part of the Marvel x MiLB New Era collab.