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

Summer Ankle Socks Base Yarn Composition: 70% Organic Cotton, 30% SeaCell. | Overall Composition: 50% Organic Cotton, 21% SeaCell, 27% Nylon, 2% Spandex.