[EDIT] Now on the front page of Propper's website as "in the news"!
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So when I'm not restraining myself from throat-punching the perpetrators, I prefer to feel superior by wearing and carrying wet-weather gear for the occasional flurry.
Propper have catered to this nicely with their Packable Windshirt, which offers offers lightweight wind protection whenever you need it. This lightweight garment has to look of a jacket, but feels like a light shirt, due in no small part to the silky 100% polyester it is constructed from. With a Durable Water Repellant (DWR) surface finish, partially due to a surface coating, and partially due to the material and weave of e surface layer, I found that light to medium sprinkles were shrugged right off. Better yet, that weave stopped medium to strong gusts of wind dead. I was pretty impressed with that, given how lightweight it was.
Usually with this kind of wind stopping you either end up with a plastic-bag feel, or a Siege of Stalingrad feeling heavy coat. Amazingly, this had neither, I was hen suspicious that it would be a steam-trap, but somehow they've found that magic balance of permeability and breathability. This is helped along with the honeycomb-mesh pattern inner liner. This liner runs throughout the windshirt, and adds no appreciable bulk.
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The sleeves have elasticised cuffs, to shut out the elements, which aren't my preference, but certainly work well enough. With arms as long as mine, I found that the Medium wasn't quite long enough, although the body-fit was good, so it meant that to feel comfortable I had to push the sleeves up. That or have half my wrists dangling free, and the shoulders dragging. For longer wearers, opt for a bigger fit.
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The cut and look of the windshirt is pretty neutral, no loop fields on shoulders or chest, no pen holders, or any external features other than the single pectoral pocket and two hand pockets, is is a pretty innocuous looking garment, perfect for being they grey-man in the crowd, albeit in black, coyote or olive.
https://www.propper.com/mens/outerwear/proppertm-packable-full-zip-windshirt.html