SmartWool NTS Lightweight Boot Top Bottom - Men's
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Heavyweight long-underwear bottoms just make your legs turn into sweaty logs by the end of the day. And ankle-length long-underwear bottoms make it seem like there's about 50 yards of fabric bunched up inside your boots. Welcome to the SmartWool NTS Lightweight Boot Top Bottom. Lightweight merino wool naturally regulates your body temperature, and the shorter length means no more boot bunching.