Material and ventilation: The harness outer layer uses Oxford fabric with an inner breathable mesh lining for good air permeability, keeping your dog comfortable during wear. Closerange control at your side: The handle is widened to prevent hand strain and choking, allowing secure, closerange control. Adjustable notension design with quickrelease: The puppy vest harness features adjustable sides to fit your pet's chest and reduce the chance of slipping , providing ultracomfort and greater freedom for outdoor activities. Heavyduty construction for mediumsized dogs: The soft, breathable vest includes multipoint reinforced wiring to withstand greater pulling force. The set includes a 1.5 m (59.05 in) leash with a sponge nonslip handle for better control. Easy wear and safety features: The large notension harness and leash set come with reflective stripes to improve visibility for cyclists and pedestrians in dark environments, making travel more convenient. Use scenarios: Everyday walks and leash training in urban environments, with secure control and comfort. Outdoor activities and hikes where your dog may pull, supported by the reinforced wiring and reliable fit. Night or earlymorning walks, enhanced by reflective stripes for added safety and visibility.