Penny, Eric....thanks for the imput. I didn't forget you, I have just been gone for awhile 'drowning worms' with grandkids.
Here was the reply from Dharma:
"I did a search online and it seems these are mountain climbing or extreme weather gear. Unfortunately our paints are all meant for 100% natural fiber, which these don't seem to be. Also any weather proofing/waterproofing would inhibit the paint from adhering at all I'm afraid. Even if by some chance you could get the paints to stick, they will stiffen the fabric, and we couldn't say how it might effect the surface treatment of the fabric. Even dyes won't work as they are intended for 100% natural porous fibers as well. Sorry we couldn't offer any help, but we wanted to be honest."