Oh yeah, pull the green card. Instant turn off.
By the way, the whole point of wearing clothes is that it draws sweat away from the body and evaporates it.
I suspect that T-shirt is super uncomfortable to wear on warm weather or when active.

Where does the sweat go? Probably down to your pants/underwear on a hot day...

@van Dinther
The point of clothes is protection. As far as sweat is concerned, wearing clothing is completely counter-productive as it stops sweat from properly evaporating and keeping our bodies cool as nature intended.
I do agree that this material would probably be uncomfortable in hot/humid weather.

That's what I was going to ask.
If this is a "breathable" fabric, perhaps it is well suited for jacket linings, etc. which are not washed frequently.
But if it's not, you might as well just wear a rubber shirt. It's going to be uncomfortable pretty quickly.

Come on, guys. It's not that hard to read their Kickstarter page. It's a woven fabric, not a solid film or even a microporous film like Gore-tex. That means it has gaps between the fibers that water vapor can pass through. So yes, sweat can escape and evaporate, although not as quickly as with the hydrophilic fibers in wicking fabrics.
My reservation is that this is only good for up to 80 washings before it degrades. And they don't say how low the effectiveness is at that point. Is it only 50% effective? 10% effective? Also, does washing really clean this shirt? If it really repels water, that means wash water isn't really touching it either. It would likely be purely the friction and agitation inside the machine that loosens any dirt.

Looks interesting. Liquid Glass Shield does the same thing as this stuff, its silica based too. Its waaay cheaper if you buy it by the litre, you will want to reapply it every 10 washes or so but its spray on and breathable.

I suggest you watch an old movie called 'The Man in the White Suit'

@Gadgeteer, I agree they don't address how much the performance is affected after x amount of washes.
"If it really repels water, that means wash water isn't really touching it either. It would likely be purely the friction and agitation inside the machine that loosens any dirt."
Water *is* touching it since there is water everywhere in a washing machine. The hydrophobic nature means that at any point it isn't submerged, the contact will be minimized by gravity that pulls the water down and away from the surface of the fabric.
It happens by the very nature of reducing the number of unfavourable hydrophobic-hydrophilic interactions between surfaces.
Wash water contains detergent that contains both a number hydrophilic and hydrophobic molecules that allow it to be dissolve in water, and e.g. remove grease at the same time.

My only concern would be the health impact of the nano particles. Can any particles come loose and be breathed into the lungs and what effect might that cause?

This looks thinner & lighter than fabrics with waterproof, breathable coatings like Gore-Tex. I wonder if it's tough enough for to make jackets & pants as well as shirts. Their web page implies they only intend to make shirts.