3 of 5 people found the following review helpful
3.0 out of 5 stars
Nikwax techwash, 15 Nov 2010
I followed the instructions for soft water area (100ml) and it produced a lot of lather, so much so that the bubbles overflowed the washing machine and spewed out of the filler drawer and caused a minor flood in my utility room. Therefore I recommend that you wash the garments in a bucket for your first use to be on the safe side.
Not sure whether it improves waterproofness or breathability yet