Shin guards are used to protect the shin which will help a lot because you have no muscle on top of your bone.
Equipment bag is used to carry the soccer ball,water bottle, First Aid kit(if needed).
For your feet you need cleats because you can't were sneakers because you can slip and hurt yourself and if you do that
you will hurt yourself every game. So that's why you need cleats.
For the goalies they need gloves, a jersey,elbow pads,and kneepads. Goalies also need bright colors on their jersey.
A water bottle is needed in a game. When you are not on the field, you can get some rest and have some cool water. Of
course, if you are playing in the rain or the snow, you don't really need one.