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Air bag vest
The air bag vest is a personal safety device worn by some motorcyclists that has found greatest use among equestrian competitors. The device is worn over a standard padded vest and is automatically inflated by gas released from a carbon dioxide canister when a tether attached to the horse's saddle is extended during a fall.〔Thomas, Katie. ("Added Safety in the Saddle" ), ''The New York Times'', August 23, 2010. Accessed August 25, 2010.〕
==Description and availability==
The device weighs approximately two pounds and is worn over a standard protective high density foam vest. Connected by a cord to the horse's saddle, a carbon dioxide canister is punctured when the cord is extended during a fall, inflating the vest in 100 to 250 milliseconds. Unlike car air bags, the air bag vests can be repacked and reloaded for reuse with a new CO2 cartridge. Companies that manufacture the vests created them for motorcyclists as early as 1999. Point Two Air Jackets, a British manufacturer, began selling the device for horse riders starting in 2009 and the Japanese company Hit Air has a similar device, which sell for about $400 to $700 depending on the model.〔(【引用サイトリンク】url=http://www.hitairequestrian.com/ )〕 As of 2010, Point Two estimated that 6,000 eventing riders wore its vests, while Hit Air estimated that 10,000 of its vests were being used. The United States Team at the FEI World Equestrian Games in 2010 planned to provide riders with air bag vests.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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