Fiorentina wear purple tops, shorts and socks whilst playing at home.
Most baseball teams today wear different combinations. The Red Sox have white jerseys, gray jerseys, blue jerseys and red jerseys (which they usually wear on Sundays and afternoons). Many teams have multiple cap styles, too.
Because owners want to sell more jerseys.
THE Dallas Cowboys
It depends on what the team decides to wear. They decide as a team on what color their jersey's should be. Sometimes the coach will pick the jerseys and jersey color.
Every team has a home and away jersey. In addition, each team must have a white jersey. The teams choose their colors and feature them on their jerseys and court. Also some teams have special alternate jerseys or throwback jerseys. For example, the Los Angeles Lakers wear purple for away games, yellow for home games and special white jerseys for home games on Sundays.
In a soccer store, one can buy many things like soccer balls, soccer jerseys from different teams all over the world, T-shirts, team wear, memorabilia, posters, jackets.
The White Sox, in 1960, became the first team to put names on their jerseys. As baseball popularity grew, other teams began to do the same. At this point all teams except the Yankees, wear jerseys with their names on them.
Players playing in the All Star games wear them
All NHL teams used to wear white home jerseys before the 2004-2005 lockout.
== == The home team in football gets to choose whether they wear light or dark colors depending on the weather; if it's cold out then the home team will usually wear dark colors to soak up heat and sunlight. Light colors reflect sunlight so the home team will wear light colors when it is hot outside. Basketball teams don't have the choice so they wear light colors at home and dark colors when they are away. Sometimes, the visiting basketball teams will wear light jerseys. It all depends on what the home team wants to wear. There will also be times when the home team will wear retro jerseys and the away team will wear colored jerseys, so no team has light jerseys.