Fabric : Fox/Fair Isle Socks: 49% Cotton, 28% Polyamide, 21% Polyester, 2% Elastane / Robin Sock: 54% Cotton, 22% Polyester, 22% Polyamide, 2% Elastane / Dog Sock: 54% Cotton, 30% Polyamide, 15% Polyester, 1% Elastane / / Penguin/Polar Bear Socks: 69% Cotton, 26% Polyamide, 4% Polyester, 1% Elastane / Tree Sock: 61% Cotton, 23% Polyamide, 15% Polyester, 1% Elastane