Question: What are field hockey players required to wear?
About the article "Field hockey", section "Local rules".

Candidate passages:
A goaltender is required to wear certain protective gear.
Every goaltender must wear gloves, a chest protector, a helmet, and a throat guard, also they have the choice to wear padded undergarments.
He also has a larger crosse (the head of a lacrosse stick) than the other players on the field.
In women's lacrosse, thigh pads, shin guards, and elbow pads are commonly used.
In men's lacrosse, a protective cup is required for all players. 
  All players must wear shin pads and gum shields.
Male players wear shorts and female players often wear skorts  Hockey sticks range from 28" to 38.5".  
 The field :  Touch is played on a grass, rectangular field measuring 70 X 50 metres (i.e.
one half of a rugby league field).
As kicking is not allowed, goal posts are not required.
The ball :  Touch balls are oval and slightly smaller than rugby league balls.
The official size is 36 cm long and 55 cm in circumference, also sometimes known as rugby size 4.
Clothing :  Players typically wear light clothing such as T-shirts or polo shirts and shorts.
All shirts must be numbered.
Women generally wear lycra bike shorts, athletic briefs or swimsuit-style lycra bodysuits.
Footwear :  Players normally wear soft rubber cleated shoes, similar to those used in other grass sports such as cricket and field hockey.
Screw-in cleats are strictly prohibited, though moulded-sole football boots may be worn.
Referee :  Touch must have at least one referee to rule the game but most major games feature one central referee and two sideline referees, who interchange roles repeatedly throughout the game.
Whistle :  The referee must have a whistle to control the game.
The Standard whistle in Australia is the Acme Thunderer 58.5.  
Other sports which feature players with numbered shirts, but where the number that may be worn is not relevant to the player's position and role are:  Athletics  Cycling  Baseball  Field hockey  Lacrosse  Team handball  Roller derby  Volleyball In water polo, players wear swim caps bearing a number.
Under FINA rules, the starting goalkeeper wears Number 1, the substitute goalkeeper wears Number 13, and remaining players wear numbers 2 though 12.
In road bicycle racing, numbers are assigned to cycling teams by race officials, meaning they change from race to race.
Each team has numbers in the same group of ten, excluding multiples of ten, for example 11 through 19 or 21 through 29.
If a race has squads of smaller than nine, each still uses numbers from the same group of ten, perhaps 31 through 36 where the next squad will have 41 through 46.
Usually, but not always, the rider who wears a number ending in 1 is the squad's leader and the one who will try for a high overall placing.
If the race's defending champion is in the field, he or she wears number 1.
In floorball all players are required to have number between 1–99 on their jersey, but goalies are only players who can play with number 1. 
Players skate on four-wheeled ("quad") roller skates, and are required to wear protective equipment, including a helmet, wrist guards, elbow pads, knee pads, and mouth guards.
Additional gear that is acceptable though subject to individual team rules include padded knee length pants, similar to what aggressive skateboarders wear, and gender specific gear such as a hard case sports bra for female players and protective cups for males.