Colorado Rockies 2017 holiday uniforms unveiled - Purple Row
Red and Blue Caps Worn Across Baseball This Weekend – SportsLogos.Net News
MLB wears special Independence Day uniforms – Sports Report Cards
MLB Preview: Yankees, Red Sox and other MLB uniform tweaks - Sports Illustrated
The evolution of MLB's 4th of July Stars and Stripes cap - Land-Grant Holy Land
MLB Releases 2022 4th of July Cap Collection – SportsLogos.Net News
The evolution of MLB's 4th of July Stars and Stripes cap - Land-Grant Holy Land
Ranking all 30 MLB teams' uniforms - Fish Stripes
The evolution of MLB's 4th of July Stars and Stripes cap - Land-Grant Holy Land
A Look at MLB's Independence Day Uniforms