Diet Starts Monday and MLB collaborate once again with New Era for an expansive set of baseball cap designs. Show some love for your favorite team with a piece from the Diet Starts Monday x MLB 2025 59Fifty Fitted Hat Collection. All 30 Major League Baseball teams are included in this drop. The color blocking comes in three variations: two-tone, pinstripe two-tone, or solid colors. The front design has the team logo, while side panel embroideries feature the New Era Flag and a variety of side patches & different quotes. The back design has both the Diet Starts Monday logo and the MLB Batterman. View the whole collection here.