The Boot Doc Lava PFI 70 Socks are a compression merino wool sock. the compression helps with circulation in the foot and leg, and the merino wool keeps the foot nice and dry. With this combination, the Lava PFI Socks are built to perform on the coldest days.
Fit perfectly thanks to stretch zones in the toe and heel areas
Comfort cushioning in the instep area
Very durable thanks to reinforcement in the Achilles tendon area