The Extreme Warmer keeps your dog warm even in challenging conditions. The unique foil coating on the inside of the jacket reflects the dog's body heat, significantly enhancing the jacket's cold protection. The fit of the jacket optimally protects the dog's key muscle groups. The waterproof outer material is durable yet pleasantly soft. The high jersey hood warms the neck, reduces the entry of cold air, and can be pulled up for ear protection if needed. The visible 3M reflectors on the jacket improve safety in the dark. An opening for the harness is also included. Recommended for temperatures ranging from 0 °C to -30 °C.