Waterproofing Products

My North face gortex jacket was recently WETTING OUT and i was advised to give the jacket a wash with NO SOAP, just water. Then do another wash using just the Nikwax. Then if i wanted to i could give it a wash with a waterproofer.

I have yet to do this so cannot comment on the result but i have heard great things for this stuff. I wasnt aware Nikwax made different types of cleaner so ill be looking into those for my ski gear.

I also have no association with Nikwax...