Any opinions on Giordana's Tenax Pro Jacket? I think I've found the best solution and didn't know if anyone's tried it. Its a non-membrane (AFAIK) breathable windproof paneled cycling jacket featuring side panels/pits that are more breathable. Assos and Descente do this, as do a few others. Unlike cycling vests that are just a mesh in the back, these jackets feature a material that lets more air pass back there without making you suffer in freezing temps.

Puff testing has been a litmus test for me and I am impressed by how consistent the puff tests are vs what people write about. Simply put, more breath passes through more breathable fabrics. I've dismissed some stuff on the racks that lets the air run too quick, or not at all. Of course, temperature affects these membranes somewhat, but they should be more open in a store, right? Gore and Gavia (PI) let no perceivable air pass. Event lets about as much go by as the Tenax's "Activa Plus GTB" and other fabrics were more free flowing than "windproof". Lastly, the side panels varied greatly on different garmets. Some go from non-permeable to what would have to be awful free-flow for the real cold, while other materials used as the "venting" portion, like Roubaix, still put up enough fight that real low temps probably wouldn't be too bad.

Am I off base going about it this way. C'mon everybody, its time to play Whack-a-noobie!
TIA