Chris wrote a review of Nikwax Fabric and Leather Sponge-On Treatment on April 13, 2014
Familiarity: I've put it through the wringer
This water proofing product is alright. I followed the directions precisely, however the results were not what I was hoping for. This would be a good product for walking to the car or to the coffee shop on a rainy day, but if you need serious waterproofing protection for hiking/backpacking/trekking/orienteering? I would seriously go with another product such as a sno-seal like product.
I used this particular Nikwax product through austere and harsh environments (terrain,vegetation and weather)and by the end of one day all benefits of this product were gone around the front of the boot. However, around the rest of the boot (in low wear areas) the boots remained treated for about a week.