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				 Originally Posted by California Dolphin 
				Interestingly, 1980s vintage short shorts are still the norm for cross country running.    
			
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Ever tried running in longer shorts?  Friction from chafing can be a major concern, so runners never adopted the long shorts popularized by basketball players.  The only long shorts runners like are the jammer-length spandex ones or - in cold weather - full length tights.