31% wool, 4% silk at the toes to keep your feet warm.
100% terry fabric under the foot, on the shin, and on the Achilles tendon.
Polyamide fabric reinforcement to limit abrasion at the heel.
Ventilation zones on the instep and sides of the upper.
Woven to prevent blisters forming on the metatarsals
Asymmetrical fit (left and right socks) for improved alignment.