Our new dog harness is perfect for Law Enforcement Supporters and dog lovers. This Thin Blue Line harness is great for walking and training pets. Our harness was designed to take the strain off of dog's necks. Woven from high-strength nylon material, the dog harness is durable and lightweight, which allows you and your pet more comfort and freedom. Let your best friend show their support for the men, women, and dogs that walk the Thin Blue Line! Available in sizes Small-XXXL One Thin Blue Line Flag Patch Included Safety Lock to ensure no accidental escapes Premium Quality, Neoprene Lined for Comfort Supports Vested Interest in K9s, 15% of profits Donated Highly Reflective for Safety Size Chest Girth Average Weight Small 21"-23" 15-25 lbs Medium 23"-28" 25-55 lbs Large 25"-31" 55-80 lbs X-Large 29"-35" 80-130 lbs 2X-Large 32"-39" 130 lbs and above 3X-Large 39" and above 140 lbs and above