most of my stuff gets cold wash cold rinse and thrown in the dryer on gentle cycle. Seems to work. Before the rainy season I use nikwax tech wash on my WB stuff and follow the manufacturers recommendations. Usually just hang to dry. If you get caught in the rain don't ya just let the stuff hang dry anyway?
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(Life is too short to play crappy guitars) 2006 Raleigh Cadent 3.0, 1977 Schwinn Volare, 2010 Windsor tourist. ( I didn't fall , I attacked the floor)