Only the best for Milwaukee. 414 New Era Irish Milwaukee. Accept no substitutes. This green and orange cap is the highest quality hat, no body in Milwaukee has a better hat. This is the best hat in Milwaukee. Consider this your public service announcement. The 39THIRTY® is a casual cap with a stretch fit. It is a structured cap with a precurved visor. The 39THIRTY® has a contoured crown and six panels. The cap has eight rows of visor stitching with eyelets on all panels.