Deerstalker, similar to the one worn during the early Basil Rathbone Sherlock Holmes films.
Black & White Houndstooth wool/polyester blend; Grey/silver polyester lining (dunno why flash made it look purple-ish); Black grosgrain for the ties.
Going to put a couple of these up on my etsy shop once I get it set up (likely after the holidays).
Link
DonQuixote
....and yes, I realize I make a better Watson than a Holmes in appearance.