Want to know more about field hockey, check out this information packet from USA Field Hockey

http://files.LeagueAthletics.com/Images/Club/2272/FIELD HOCKEY/Field Hockey 101 USAFH v2 Aug.pdf

Field Hockey Equipment Required:

Mouth Piece

Proper Turf shoes that will protect your feet from the hard ball.

Field Hockey Shin Guards.  Soccer shin guards do not provide enough protection.

Goggles are option, but are not required.

Field Hockey Stick.  

LENGTH of Stick Information

It is important to have the correct size stick to execute both basic and advanced skills. The length can be the deciding factor in completing a pass, making a tackle…or making a mistake. A defensive player or mid-fielder may prefer a longer stick in order to drive the ball further, and an offensive player might select a shorter stick for better handling and control. Sticks can range from 28” – 37.5” or more. Typically, the stick should come up to the top of your hipbone. 

Below are some basic height/size guidelines:
 

Visit here to determine the length of stick that you need:  http://www.harrowsports.com/how-to-choose-a-field-hockey-stick