This customizable dog harness set is specially designed for medium and large dog breeds, combining exceptional comfort, safety, and personalized design for daily pet walking, training, and outdoor adventures. Made of high-quality breathable air mesh fabric, the harness is lightweight, skin-friendly, and highly ventilated, keeping your dog cool and comfortable even during long walks or intense activities. The integrated reflective strips on the straps and body significantly enhance visibility during early morning, evening, or night walks, greatly improving pet safety in low-light conditions. The harness features an ergonomic no-pull design, which evenly distributes the pulling force across the dog's chest and back, preventing neck strain and choking, while also effectively reducing the dog's pulling behavior. The fully adjustable straps on the neck and chest allow for a precise, customized fit for different dog body types, ensuring a snug and comfortable wearing experience without restricting movement. The sturdy metal D-ring on the back provides a secure attachment point for the included matching leash, which is made of durable nylon material for reliable control during walks. Available in 7 stylish color combinations, this harness set supports full customization of your brand logo, text, or patterns on the chest patch, making it ideal for brand promotion, personalized gifts, and bulk custom orders. It is perfect for daily walks, obedience training, hiking, and all outdoor pet activities. Custom sizes, colors, patterns, logo printing and bulk wholesale orders are warmly welcomed.