Keep On Truckin' Apparel in collaboration with R. Crumb has created this exclusive design for the Cartoon Art Museum in San Francisco. Starting Friday the museum store with have these cool Mr. Natural t-shirts available in White, Sand and Military Green sizes S-M-L-XL. So get yourself on down to the museum, at 655 Mission Street and get this one of a kind offering. "YEP"Keep On Truckin' Apparel has over 100 Robert Crumb images available on t-shirt at their website http://www.kotapparel.com/
