B - my enclosure is made of some type of vinyl stuff.  Pretty dang durable and virtually water proof.  Shrinkage has not been a big issue except in the cold of winter she shrinks some, but always limbers up in the warm weather.  When winter fishing I have even put the curtains inside the truck to warm them up before trying to snap them in just to avoid the issue.
		 
		
		
		
		
		
		
			
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1994 Wellcraft V21
			  
		
		
		
		
		
	
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