On a hike you will have diffrent opsticles, which will need diffrent tools but here is a list of the basics:
Water
Good shoes/walking shoes
Protien bar
Clothes to Wear:
Tank with coat over it (you will be cold to begin with then you will get hot, most likely)
Shoes
pants or shorts (dress to the weather)
Things Not Recommended:
Wearing heels (girls)
Bringing soda instead of water