Major League Baseball uniforms

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Major League Baseball uniforms" – news · newspapers · books · scholar · JSTOR (July 2016) (Learn how and when to remove this message) This article possibly contains original research. Please improve it by verifying the claims made and adding inline citations. Statements consisting only of original research should be removed. (March 2014) (Learn how and when to remove this message) (Learn how and when to remove this message)

The uniforms worn by Major League Baseball teams have changed significantly since professional baseball was first played in the 19th century. Over time they have adapted from improvised, wool uniforms to mass-produced team brands made from polyester. The official supplier for Major League Baseball uniforms is Nike, who has held the contract since 2020.^[1]