How does this material block wind compared to the Windwall 2 coat?

Dan - I would like to clarify some of the statements Julian makes regarding Windwall which I do not find to be accurate. Comparing Wind Pro to Windwall is not comparing apples to apples. Wind Pro blocks about 4 times more wind than traditional fleece or about 60 CFM, and accomplishes this through a more dense weave. The Windwall on the other hand accomplishes it's windblocking characteristics through a laminate at about 14 CFM. Wind Pro lets through more wind through but is more breathable, while Windwall blocks more wind but is less breathable - like most fabrics from good companies, it's not a matter of trust - just finding the characteristics that fit your needs and budget. Hope this helps

This fleece is made up of two materials: (1) Power shield panels and (2) Wind Pro body. First, the power shield. Power shield is soft shell, so that means windproof and highly water resistant. Second, the wind pro. Wind pro is much like the windwall fabric in that it is not windPROOF but rather blocks out a great deal of wind. If you are looking for a technical, outdoor, windproof fleece, look elsewhere. But, if you are looking for a fleece with the classic styling of the denali and a bit more of a technical edge, you found it. To REALLY answer your question, it is more wind resistant due to its softshell panels, though the windpro section will be much like that of Windwall. Personally, I would trust a polartec fabric more than a TNF proprietary fabric, as Polartec makes fleece for a living. I know for a fact that the "windproofness" of windwall is not the very best, and Polartec would be my first choice for making something better. (There's a reason that marmot, arc'teryx, TNF, and patagonia are all switching from their own fabrics to Polartec's)