Siberian Husky
A Siberian Husky has a double coat that is thicker than that of most other dog breeds. It has two layers: a dense, finely wavy undercoat and a longer topcoat of thicker, straight guard hairs. It protects the dogs effectively against harsh Arctic winters, and also reflects heat in the summer. It is able to withstand temperatures as low as . The undercoat is often absent during shedding. Their thick coats require weekly grooming.