Siberian Huskies are medium-sized, graceful members of the Working Group with a distinct wolf-like appearance. Siberians have a double-layered, medium length coat which acts as insulation against both cold and heat. The dog's fur is usually black and white, gray and white, copper-red and white, or pure white. The breed often has white paws and legs in addition to unique markings on the face. The brush tail is covered by thick fur and is sometimes carried in a sickle-shaped curve over the dog's back. The Siberian Husky has triangular, erect ears and beautiful eyes that can be brown, hazel, blue, or a combination of these colors. Siberian Huskies have strong chests and backs, well-muscled upper thighs, and are known for being athletic, elegant dogs.