I bought a pair of shoes once and they sold me a spray that had a repellant effect. That crap really worked even on paper towels. I just don't know if after a wash cycle the repellant qualities would still be there. It's probably something similar to Rain-X and is a heavy duty wax in an aerosol can. I think it would work on jeans but plan on being a dirty basard because I bet washing them will kill the effect. :smile: