The Arc'Teryx Bird's Nest project makes rain capes out of leftover goretex and gives them to homeless people. They have been doing this for several years now.
*Possibly the most exclusive Arc'Teryx products as I don't believe you can buy them anywhere, besides from a hobo in Canada.
*Newer models include insulation.
http://leaf.arcteryx.com/Article.aspx?EN&article=Arc-teryx-and-Vancouver-Police-help-some-of-Vancouver-s-most-vulnerable