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By Hardface, I'm not referring to a power stretch mix with nylon on the outside, but to a new material from Polartec which puts a light coating (urethane?) on the outside of the power stretch or wind pro fleece. http://www.polartec.com/contentmgr/showdetails.php/id/843
How does Polartec Wind Pro rate in your measurements versus Power Stretch and Power Dry? Light Wind Pro garments can work very well over a fairly wide range.
I stay away from any type of wind blocking fleece for active use. Just too hot and not breathable enough. Around town, yes. But even around town I find them hot. Plus I always carry a highly breathable wind shell (Houdini) or in winter, an excellent light Patagonia hooded softshell jacket. I currently use the Arcteryx Wind Pro with Hardface hoody for around town and travel, for which it's well suited. The Hardface garments seem to give up a little loft/warmth for the Hardface coating.
I know you carry a wind shell as well, but I personally prefer the power stretch blend that includes nylon near the surface (though again this is not called Hardface, which is another Polartec product). The surface nylon not only makes the garment more durable, but it adds a little wind resistance, which means it can be used longer before having to throw on a wind shell. I run and x-country ski in this type of power stretch top and bottom in winter. Only when it is very windy and very cold I throw on my wind shell or light softshell and a more wind blocking tight. I find the stretch in this type of power stretch more than sufficient for active sports. If you are only giving up .022 clo, that's not a bad trade off for more wind resistance and wider use range.
I find my Houdini excellent overall, but I don't think it would stand up to a lot of abrasion and I try to be careful with it. My light winter softshell is much more durable.
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