Merino wool is incredible because it’s warmth is relative to its weight. Just because it is wool doesn’t mean it needs to be heavy. As one of the finest wools it possesses greater moisture wicking ability so water and sweat don’t get trapped in the fibers and weigh you down. Knitted merino wool creates for a lightweight and durable shoe, where compressed fabric would be heavy on the feet. No one wants heavy and clunky footwear!