Easy on, easy off - the everyday harness for dogs that pull. Our Outdoor Style Step-In Nylon Harness slips on in seconds: paws through, buckle clicks, you&';re out the door. Woven from heavy-duty polyester webbing with a smooth weather-resistant coating. Mud, water, sand, burrs - wipe it clean and it looks new. The single YKK polyacetal side-squeeze buckle releases under load, and the steel D-ring sits on the back to spread leash pressure across the chest, off the throat. Made in Colorado, USA. Bonded polyester stitching at every stress point. Steel hardware that resists rust and corrosion through every season. Size chart: S - 5/8" wide, 10"-20" girth M - 3/4" wide, 12"-25" girth L - 1" wide, 18"-32" girth Measure the widest part of your dog&';s rib cage, just behind the front legs, then add 2" for a comfortable fit.