Window Breeze Friendly Design: Secures your dog with a car harness system while allowing window airflow for comfortable travel. Adjustable, Durable Fit: Fits medium to large dogs up to 100 pounds; the harness length is adjustable and built with a robust, pull resistant construction for reliable support. Jump Out Prevention System: Provides strong restraint to prevent exits during driving. Shock Absorbing Comfort: Features a pull force buffering system to reduce neck strain; ergonomic hand grip design makes handling and adjustments easy. Usage scenarios: Road trips with a 60–100 lb dog: the secure harness keeps the pet in place while you enjoy fresh air from the window. City driving with frequent stops: prevents jumping out during sudden braking or deceleration. Long highway journeys: reduces neck and shoulder fatigue thanks to the shock absorbing design, improving overall comfort for the pet.