Majestic Athletic, the on-field provider of all Major League Baseball jerseys has posted an interesting look at the process of making an authentic on-field MLB jersey.
Some highlights from the video, in which they are shown creating a Chicago Cubs home jersey:
All on-field uniforms are made in the United States at their facility in Easton, Pennsylvania
Patches, logos, lettering, and numbers are first heat-pressed onto the jersey, then sewn by hand… they are then heat-pressed/ironed a second time to ensure there are no wrinkles
Uniforms are sewn using “cover stitching” which increases durability while maintaining player performance
You can see the video below:
Wait, why does a Yankees uniform have “Sabathia” on the back in the intro?