I've had a pair of Ion Mask Hi-Tec boots on test since October last year and they haven't leaked yet, they also don't seem to pick up dirt and as part of the test I've not treated them yet. There have been a few pairs returned to our company though, all leaking at the same point - where the leather meets the fabric at the beginging of the laces. I think that this is more of a design flaw rather that failure of the Ion technology. Its a learning process applying new techniquies. But imagine it on say a wool shirt, or a pair or trousers... may not be 100% waterproof but it would allow greater freedom from condensation as it does not impead breathability like a membrane does. It's similar to Paramo clothing, though their clothing is also designed to activly move moisture away from your skin.
I've had a pair of Ion Mask Hi-Tec boots on test since October last year and they haven't leaked yet, they also don't seem to pick up dirt and as part of the test I've not treated them yet.
I've had a pair for a month or so. They were really comfortable 'out of the box', and seem well made. It's early days regarding the durability of the water resistance, and I wonder how it will stand up to heavy scuffing.
I paid £69 post paid for them.
Over their life, I've rubbed several tins of Nikwax into my old Berghaus boots, but they still get wetted out after 100 meters in wet heather!