Black Diamond BD Light Crew Merino Socks

A lightweight merino crew sock built for trail runners, hikers, and approach climbers who need the thermoregulating performance of merino without the cushion bulk of a ski sock, the Black Diamond BD Light Crew Merino Sock keeps feet dry and temperature-stable through long approaches in shoulder-season weather. Light cushioning underfoot dampens trail impact without filling the toe box, and breathability at the upper foot vents the heat buildup that produces blisters in mid-summer. Merino fiber wicks moisture and resists odor across multi-day trips, which is the relevant performance gap on a hut-to-hut traverse where a synthetic sock starts to smell after two days. The crew height clears the ankle of a low or mid-cut approach shoe and stops short of the calf where touring boot pressure would otherwise live, which is the right sock for hiking, rock climbing approaches, and trail running.