Granger's 2-in-1 Cleaner and Proofer

Works on both counts well.

I might give this product a better review when I can work out how the heck to use it , the bottle instructions are in Greek ? Polish? or Russian?Nice to know it was made in Derbyshire though .Edit: 26/8/2016 Grangers customer services dept was very helpful and admitted that this batch should not have been released on the market with Greek instructions by the third party supplier. I've since given the product a better rating.

I really don't understand the bad reviews people have given this product it is simply the best solution on the market for cleaning and reproofing your waterproof breathable garments, I can only assume they are not following the dosage or usage guidelines because it does exactly what is described in the sales pitch, just wash in and either tumble dry to activate (if garment wash instructions allow it) or use a hair dryer once out of the machine to heat treat the garment and activate the waterproofing, the heat treatment after washing is crucial, I have also hung garments on a hanger above a warm radiator overnight to get the required heat treatment to activate the proofing.If you're like me and you are always outdoors regardless of the weather you probably have a lot of waterproof breathable gear, if so buy it by the litre as i now do our you are going to be needing more than one of the 300ml bottles just to do one wash as the usage instructions advise the first garment you treat you should use 100ml and then 50ml extra for each extra garment, i do all mine together all in one go and use 500ml per wash and proofing so I get 2 full treatments for all my waterproof gear per 1ltr bottle, thankfully each treatment gives a waterproofing that lasts a good while and when the garments just needs cleaned you can wash in regular detergent and not remove the proofing, then as the waterproofing is reduced over time you retreat all your waterproofs again

The product was easy to use, and worked great! I went back out in the rain and it my coat seemed nearly as good as new in terms of it's waterproof capacity. However, this waterproofness only lasted for about 3 weeks. So I think it is better to get a big bottle of this and treat your clothing regularly.

Good for water proof jackets

two goretex waterproof jackets, 30degree wash, one extra capful in the wash and a 20 minute tumble dry - result is "water off a duck's back". Very happy with this product. One jacket warned "no tumble" but its absolutely fine.

My walking jacket is now clean and bright again. Has yet to be tested in the rain.

It worked as a waterproofing a couple of times, but now I am beginning to get damp when it rains, would work out very expensive if I had to re proof every 2nd or 3rd time I went out in the rain.