It sounds and looks like a great product. There's a lot to be said for a double layer of thermal protection. For some reason two layers seems much warmer than a single layer of equivalent thickness. When it's really cold water and air (mid-30s F) I wear a 6/5/4 wetsuit with a 2mm shorty over it. Unbelievably warm. I can hang in the water for an extended period without getting even slightly chilled, and on the beach, which is when the evap cooling effect really hits, I stay completely warm. Much warmer than what you would expect from an extra 2mm wetsuit. With just the 6/5/4 I'd be freezing while packing up. With the double layer I'm super warm. A thinner product like the one being discussed would be awesome. Gotta check this out. It's the same price as my shorty wetsuit was, and probably a lot more comfortable.
Don