The standard package for lacrosse is as follows:

I am recommending Kick N sticks in Millburn as the place to go first.  They will give you 10% off if you tell them you are from Clark Lacrosse.  I want everyone to ask the guy to custom string the stick, he will do it for free in 1-2 days.  It makes all the difference and its free.  

1. Stick and "Back-up stick".  (In case one breaks in the middle of a game).  Kicks-n-sticks will "custom string" one for you.  This is highly recommended.

2. Mouthpiece

3. Helmet

4. Shoulder Pads

5. Arm Pads

6. Gloves

7. Cleats/Sneakers

8. Cup (mandatory for goalies)

9.  If you are a goalie, you will need a Goalie Stick, Chest Protector, and Throat Guard.

10. An lacrosse equipment bag is a good idea to keep stuff together.

11.  Miscellanous items that are good to keep in the bag: White Athletic tape, back up stick, water bottle, lacrosse ball, screwdriver.