Re-waterproof

[squeezebox]

A while back my bicycle saddle bags were very dirty so I washed them and all the waterproof coating came off. Is there any way to re-waterproof them. maybe some spray or brush on coating. they are woven nylon. cordura or such I think.
Thanks!

[Wise Old Owl]

http://www.rei.com/search?query=waterproofing

or one product that wasn't listed...

Techtron water repellent DWR & Gortex

http://www.ems.com/product/index.jsp?productId=3664542