Bests & Worsts Reviews from Amazon

First a warning. DO NOT APPLY THIS STUFF INDOORS! Here is the problem with doing the waterproofing in your bathroom with this stuff: As soon as the molecules come in contact with air, they start to expand, and if you breath it in then it will expand in your lungs. It basically feels like there is no air in the room. It can literally kill you. Outdoors or in a really well ventilated room it's not a problem, and once applied there's nothing wrong with letting it set and dry indoors. On the other hand, you don't want it getting on walls and such which are not clean--because they'll be very difficult to clean afterwards. But now for the good news: This stuff actually works like it shows in the picture on the label. All these waterproofing fluids make this claim--that water will bead off--but Nikwax actually delivers, and it works not only on high tech fabrics, but common fabrics such as cotton as well. I've ridden through many a typhoon--yes, actual typhoons in Japan--and the rain did not penetrate my cycling jacket. I was dry as a bone under my waterproofed jacket. The jacket wasn't nearly this waterproof when it was new. No worries about washing it off when your favorite sports clothing gets really stanking--costing you time and money to reapply after each washing. This stuff still works after a good five or six washings with regular laundry soap. It also works on cotton, wool. The one claim you would think wasn't true is the fact that it not only maintains but enhances the breathability of fabrics it's applied to. This is entirely true, and makes sense when you think about how breathability is effected by moisture blocking up the fabric--whether rain or sweat--and how that's prevented by Nikwax. Not just for sports, I'm sure it will work far better than Scotch Guard on your fabric covered furniture, school bags, Converse All Stars, and whatever else you might want to make resistant to spills and therefore stains. Nothing bad to say about this stuff, except that you shouldn't spray it indoors. It really works. When applying this, it's best to take a sponge you're never going to use again and spread it on your fabrics after a few sprays. Spraying on so much that it covers your fabrics by spraying alone is a tremendous waste of the contents and costs more money of course.