[1] The hard surfaces of the ice and boards, pucks being shot at high speed, and other players maneuvering (and often intentionally colliding, also known as "checking") pose multiple safety hazards.
The hockey skate is usually made of a thick layer of leather or nylon to protect the feet and lower legs of the player from injury.
Goaltenders' skates, however, have blades that are lower to the ice and more square than round; this is an advantage to the goalies, for whom lateral mobility and stability are more important than quick turns and speed.
Jacques Plante was the first regular user of the goalie mask; Clint Benedict used a crude leather version in 1928 to protect a broken nose.
Youth and college hockey players are required to wear a mask made from metal wire or transparent plastic attached to their helmet that protects their face during play.
Some players feel that they interfere with their vision or breathing, or encourage carrying of the stick up high in a reckless manner, while others believe that they are a necessary safety precaution.