These sheep have got lots of wool, including the black one. A fluffy flock on a mint green sock with a grey heel and toe. Baaaaa! Made from sustainable bamboo fibre. Bamboo has natural anti-bacterial properties, a soft luxurious feel that lasts the life of the product giving you continued durability and comfort. Available in Mens Regular and King size Composition: 80% Bamboo 15% Polyester 5% Elastane Origin: China