Hello all,
 
	Long time lurker, first time poster.  I have a client, who knows that I am an amateur where knife sheaths are concerned.  Through the posting this fabulous site I have learned what leather to use, how to custom design, and how to sew them together.  However my client insist that all of the sheaths that he ordered be lined.    I have no clue what to line it with.  He is concerned that the knives might get rusted in the leather.  Would cordura or kylex be better?  Any suggestions? 
 
	I have read several posts that suggest not storing the knife in leather is the best way to keep the knife from getting damaged.  He still insists on a lining.
 
	Any help would be welcome.