3 of 4 people found the following review helpful
Compulsory for Gore-tex and similar,
Verified Purchase(What is this?)
If you've spent a lot of money on a decent jacket, you really should have this stuff as well. It will wash the dirt off your coat without destroying the proofing (although it will still need re-treatment from time to time with Nikwax Tx. Direct Wash In Wash In Waterproofer).
Most places only sell the small bottles - Amazon's price for the large bottles makes it a lot easier on the wallet, especially if you've a few waterproofs in the house.