Oddly enough, I borrowed my son's cape a couple of weeks ago (it's not nearly as nice as Mr. Antony's!) and really liked it. Being the do-it-yourself type I decided that this would be a good project for this summer when my time is a bit more free.

Does anyone have any suggestions as a good (and available) material for this? Wool would be neat, but heavy and not exactly "packable." I have no idea where to find "double layer" cotton that is waterproof. This must be the specialty item of the century!

Any suggestions appreciated!