I have to admit that I don't know what material is the best for a Crombie,does a certain % of man made fibre make it wear better ? or is wool the best ?. I think that black looks to stark ? so I agree with you about navy,I am thinking it could be worn with jeans and my tan brogue boots in a more dressed down way,but what shirt ? a BD and Crombie was a good look but is it too much of the reenactor look now ?. M+S have a wool and cashmere coat in black for £159,but it also says 'wool rich' and doesn't give details of other materials..I might have been interested if it was navy,but there doesn't seem to be too much about without going really expensive and I don't know that I want to pay a hell of a lot for a coat that I don't know if I would wear much.