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			My son uses a Cooper protector. Coolmax lined, and very breathable. Some guy is selling them on ebay for next to nothing in a lot sizes. I may have get one as a backup for really hot days. It's a really nice rig. 
 
As others have said, Under Armour is the way to go, also.
		 
		
		
		
		
		
		
		
		
	
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