All-Season Ankle Socks Base Yarn Composition: 70% Merino, 30% Khullu. | Overall Composition: 43% Merino, 18% Khullu, 37% Nylon, 2% Spandex.

All-Season Crew Socks Base Yarn Composition: 70% Merino, 30% Khullu. | Overall Composition: 43% Merino, 18% Khullu, 36% Nylon, 3% Spandex.