This heavy-duty tactical dog collar is engineered for medium and large working/active dog breeds, combining breathable 3D mesh padded lining, high-visibility reflective strips and a lockable quick-release buckle. Built for daily walking, outdoor hiking, field training and working dog duty, it delivers reliable durability and long-wearing comfort, making it a high-competitiveness SKU for outdoor pet stores, training brands and private label sellers. Breathable 3D Mesh Padded Lining: The full inner layer is covered with soft elastic 3D air mesh, which evenly disperses pulling pressure to prevent neck chafing and red marks. The hollow mesh structure ensures good air circulation, stays cool and non-stuffy even during long-time outdoor training, suitable for all-day wear. High-Visibility Night Reflective Strips: Dual reflective strips along the collar edges reflect vehicle headlights and street lights at night, greatly improving pet visibility and reducing traffic risks for evening walks and low-light outdoor activities. Lockable Heavy-Duty Quick Release Buckle: Upgraded impact-resistant plastic buckle with safety lock design, which prevents accidental opening when dogs pull or run wildly. The one-hand operation design enables fast on and off, with strong tensile strength to withstand sudden surges from large energetic breeds. Tear-Resistant Reinforced Nylon Webbing: Made of thick high-density nylon webbing with double-line reinforced stitching, anti-tear, wear-resistant and fray-proof. It performs stably in harsh outdoor environments and fits hiking, field training and working dog scenarios. Full-Range Custom Service: We support end-to-end customization including color matching, brand logo printing, size specification and retail packaging. Low MOQ starting from 100 pieces, with fast sampling and stable mass production delivery to support your business growth.