Rawlings manufactures the majority of uniforms for teams in Major League Baseball. I do not think that all teams contract Rawlings for uniforms, but I believe that they do have roughly 70% of teams using their uniforms and equipment.
Yes
None
Themselves
The players get new uniforms for each game!
They wear majestic uniforms on the field
Oakland Athletics
they all use a bat, a baseball, 9 positions, a coach, a field, bases, and uniforms
San Diego Padres
The 1916 Cleveland Indians who had the number on the left sleeve of home uniforms.
The Brewers.
Seattle Mariners,Houston Astros