The Evolution of Catcher's Equipment – Society for American Baseball Research
What Pros Wear: WPW Report (Updated): MLB Catcher's Gear 2018 (Face Masks, Chest Protectors, Shin Guards, Mitts) - What Pros Wear
Same Game, Different Tools
Baseball - Wikipedia
MORE
Encyclopedia of Baseball Catcher's Equipment - Mitt
Encyclopedia of Baseball Catcher's Equipment - Mitt
The Evolution of Catcher's Equipment – Society for American Baseball Research
NOCSAE Catcher Safety Regulations
The Research Collection – Society for American Baseball Research
What Pros Wear: WPW Report (Updated): MLB Catcher's Gear 2018 (Face Masks, Chest Protectors, Shin Guards, Mitts) - What Pros Wear
What Pros Wear: WPW Report (Updated): MLB Catcher's Gear 2018 (Face Masks, Chest Protectors, Shin Guards, Mitts) - What Pros Wear