The Dog Helios Weather-King Ultimate Windproof Full-Body Winter Dog Jacket is lined with exclusively developed Blackshark Heat-Retention Technology. This advancement maintains and reflects your pet's body heat back into the body. This innovative fabric is lightweight, waterproof, impermeable, windproof, snow-proof, breathable, and tear-resistant while retaining any lost body heat during those frigid weather conditions. Additionally, the windproof dog jacket features a waterproof-treated lightweight polyester blended outer-shell with added proprietary coatings that make it completely waterproof. The outer fabric also features reflective 3M tubing, taping, and reflective-embedded fabrics for complete safety during night strolls or during any extreme activities and features hook-and-loop adjustable sleeves to further prevent any colder air from seeping through the sleeve areas. This Weather-King dog jacket from Dog Helios features an additional adjuster by the neck area and the hood that completely opens and adjusts closer to the facial area to protect the face from any type of frostbite as one of the most important coverage areas. Connector belly and chest hook-and-loop closures add warmth and support for a more customized fit. Features a leash slit holder at the backside with accented embroidery and print on the outer shell. Lined with Blackshark Heat-Retention Technology Maintains and reflects pet's body heat back into the body Lining is waterproof, windproof, snow-proof, breathable, and tear-resistant Shell is made of waterproof-treated lightweight polyester 3M reflective-embedded fabrics Hook-and-loop adjustable sleeves Hood completely opens close to facial area Adjuster by neck area Customizable fit