The elderly professor was always seen in his 'tweeds'.
a skirt made of 'tweed'
a 'tweed' jacket/suit
(..) "The History of My Skin," by Charles Simms. You patronizing me, peewee? Hmm? You givin' me that old prep school palaver? Baird School! A bunch of runny-nosed snots in tweed jackets all studyin' to be George Bush. Well... I believe President Bush went to Andover, Colonel. You sharpshootin' me, punk? (..)1992 Scent of a Woman