American River choke free ombre harness. What makes this harness stand out from the others? Not only is it a beautifully crafted harness, it is a patented design featuring: Choke Free. Pullls on the chest and not the pet's trachea. Multiple sizes. Certified strength tested to 386 pounds by an international independent testing laboratory. Zig zag stitching for further reinforcement. Reflective side trim. Special color blending technique to create a beautiful palette of rainbow colors. Features easy step in, wrap up velcro close and buckle close. Two D rings come together for secure leash attachment. Mesh and polyester materials, washable. Certified Break Strength Tested to 386 Lbs, by an International Independent Testing Laboratory. Important Sizing Note: The following measurements are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the following dimensions (with a little room to spare in the chest and neck). XX-Small Chest: 9"-11" (Most Important) Pets Weighing: 2lbs.-3lbs. X-Small Chest: 11"-13" (Most Important) Pets Weighing: 4lbs.-6lbs. Small Chest: 13"-16" (Most Important) Pets Weighing: 6lbs.-11lbs. Medium Chest: 16"-19" (Most Important) Pets Weighing: 11lbs.-16lbs. Large Chest: 19"-21" (Most Important) Pets Weighing: 16lbs.-25lbs. X-Large Chest: 21"-24" (Most Important) Pets Weighing: 25lbs.-40lbs. XX-Large Chest: 24"-28" (Most Important) Pets Weighing: 40lbs.-60lbs. XXX-Large Chest: 28"-33" (Most Important) Pets Weighing: 60lbs.-90lbs.