A helmet is the most needed part of equipment.  If you don't protect your head then there is no use protecting anything else.
Every time you go riding you should always wear pants.  It protects you from rocks, jaggers, etc.  It will also keep you cleaner from mud and things like that.
	This is a good jacket if you are hunting.  It blends in in the woods so deer and other animals have a hard time seeing you.
Gloves are also another important part of riding gear just like pants.  They protect you from jaggers and things like that.