That's the stuff alright. They don't say anything about color. I have gray, yellow, orange and white. I wish I had grasshopper tan and green drake olive. I'll have to give them a call. Good work. Although they sure aren't cheap at six bucks or so for a square foot.
I got 4 foot by 4 pieces 20 years ago, for about ten bucks each, from Industrial Wholesale in Seattle. They were reluctant to fill my order. They're wholesale only and have no interest in one time sales. They want to set up net 30 credit and expect a monthly order.
The salesman then also mentioned a polyethelene closed cell foam at 2lbs per cubic foot. EVA is elylene vinyl acetate.