### shield:

Helmet
* Every helmet has an inner shell made of strong material.
* Many helmets also have a hard outer shell to protect against collision with a sharp object.
* Most helmets use shock-cord tabs to secure a headlamp.
* Some helmets are made from metal.
* Some helmets are worn by construction workers
* When worn properly, helmets can prevent serious injury and save lives.
* actually do affect a rider's ability to hear.
* are a form of security
  - very effective device for protecting motorcyclists against severe head injuries
  - an essential component of any snowboarder's protective gear, regardless of ability
  - hats
  - headdresses
  - important in sports other than cycling
  - just as important as safety belts and child safety seats
* are mandatory for all motorcycle drivers, driving on public roads
  - motorcycles and bicycle riders
  - necessary for bicycle safety
  - part of body armor
* are the first line of defense against many types of accidents
  - most effective safeguards against traumatic head injuries
  - only skating equipment approved by a safety organization
  - single most important piece of safety equipment in bicycling
  - used for protection
* can greatly reduce the risk of head injuries and death
  - help reduce the frequency and severity of head injuries
  - potentially benefit car occupants as much as cyclists
* can prevent head injuries and skull fractures
  - injuries-the main cause of death and disability
  - serious head and brain injuries and even save lives
  - vary in weight
* come in all kinds of colors and styles
  - many sizes and varieties, including many infant sizes
* decrease the risk of death and severe injury.
* do protect the head from direct impact.
* dramatically reduce the risk of head injury in a bicycle accident.
* greatly decrease the chance of serious injury in a crash.
* help reduce injuries while skateboarding, rollerblading or bicycling
  - to protect cyclists from head injuries and save lives
* includes sections
  - visors
* offer head protection
* often have fabric cushions inside and fabric straps to hold the helmet on a person 's head.
* prevent injuries and death.
* protect heads
  - the head, hence battle helmets, bicycle helmets, hard hats and the like
* provide minimal protection
  - protection and insulation on particularly cold days
* reduce risk of head injury.
* reduce the potential for injury
  - risk of risky behavior
* save lives and prevent injuries
  - serious injuries
  - protect against serious head injuries
* significantly reduce the risk of sustaining a serious head injury.
* work by absorbing and distributing the impact of a crash before it reaches the brain
  - the energy of an impact to minimize or prevent head injuries
+ Tour de France 2010, Race Rules, Rules
  * Helmets are obligatory for all stages.
  * A 'helmet' is a hard or cushioned hat which is worn to protect a person's head. There are many different types of helmets. Some helmets are made from metal. Other helmets are made from plastic. Helmets often have fabric cushions inside and fabric straps to hold the helmet on a person's head.

### shield | helmet:

Batting helmet
* are relatively new additions to the protection of baseball players.
* is baseball equipment

### shield | helmet:

Bicycle helmet
* Most bicycle helmets protect heads.
* absorb the energy of a blunt impact to the head.
* are a rarity on Beijing's streets
  - expensive
  - for in-line or quad skating
  - light, cool, and comfortable
* are mandatory in British Columbia No horseback riding
  - single-impact helmets
* are the best protection against mishaps that cause death or injury
  - only kind of helmets made specifically for bicycling
  - unheard of
* offer head protection for sports like in-line skating and roller skating.