Evolution of a kit: Bethlehem Steel FC – Society for American Soccer History
Football Kit Archive
Morocco makes history in 1-0 defeat of South Korea at Women's World Cup - The San Diego Union-Tribune
Philadelphia Union Kit History - Football Kit Archive
Philadelphia Union Kit History - Football Kit Archive
– Sports kit history and comment, to inform and enlighten
New York City vs. Philadelphia: Alejandro Bedoya goal, Union's police brutality victims names on jerseys in win over NYCFC
Philadelphia Union 2010 Home Kit
Philadelphia Union Football Shirts - Club Football Shirts
Philadelphia Union 2013 Away Kit