How 37.5 Aerowool Works | First Lite

Built with 65% merino wool, 35% nylon, and imbedded with 37.5 technology, First Lite's Aerowool is a durable, versatile, and supercharged fabric that's ideal for any stationary or active hunter. Aerowool does an excellent job regulating your body's temperature, keeps you warm when you're wet, is odor resistant, has no shine, and is dead-silent. Available in all of our ultralight and lightweight baselayers, check out our Aerowool lineup at www.firstlite.com.

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