Socks are the foundation to every kit.

At Black Diamond we partnered with expert sock makers, Peter and Patty Duke, to create a line of merino socks for every mountain pursuit. The BD Medium Crew Merino Sock offers extra cushioning on the instep and around the leg to protect against pressure points from heavier footwear. The cozy merino wool cushioning next to the skin insulates the foot from hot spots and provides natural thermoregulating properties to minimize moisture and lock in warmth.