|This cold-weather jacket, called the Stormy Trail, has elasticized cords hidden inside its hand pockets. When tugged the cords tighten a baffle and create a “flow chamber” of sorts to vent a runner in motion. So as the wearer runs, air entering the jacket through a series of vents can't escape out the bottom. Instead, it flows up the runner's back and escapes out another vent closer to the top of the jacket, taking heat with it and cooling the wearer in the process. An open vent on the jacket’s back then lets the air and body heat escape, keeping a runner cooler and less-sweaty where needed on the move. It will be available next July for about $165.
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