[kisito]

I always thought "Equipment" never takes an "s", but all over the web, people add "s" to mean plural. Even my computer does not show that "equipments" is a mistake. When did "equipment" start to take "s" for plural? Which is right? " We have several sporting equipment. " or We have several sporting equipments." What do you use?
I know we can say "several pieces of sporting equipment", but I don't want a long sentence.