About 2 months ago I ordered a pair of those sleeve things that protect your arms from the sun.  They were cheap ones and I was skeptical and wondering why not wear a long sleeved shirt.  Today I finally gave them a try and found out what the difference is.  Arms are covered but there is ventilation going into the short sleeve shirt bit so the set up is cooler than just a long sleeved shirt.  Temps were in the 90s while I was out riding today.
	
		
			
		
		
	
				
			 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		