SmartWool PhD HyFi 1/2-Zip Top - Men's - $113.97

The SmartWool PhD HyFi 1/2-Zip Top's heavyweight merino works as a warm insulator for nasty mid-winter storms. Then, as spring welcomes you into the stable backcountry, you can wear just this top on your way up the skin trackits nylon sleeve panels withstand branch encounters, its zipper can dump excess heat, and its merino wool keeps enough heat inside when a cloud covers the sun. - $113.97

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