What is the best material for an outdoor basketball backboard?

I'm thinking about buying a basketball hoop and want to know the best material for the backboard. I really just don't want it to break.|||Plexiglas, Ive had one for a while now. still holding up|||Plexiglass or unless ur some rich person regular glass|||wood lol jk. plexiglass is best|||!!cement!! or this rubber type of flooring idk what its called tho