dogs, the Extreme harness provides ultimate security and comfort, and functionality. -Heavy-duty components, including sports buckle, padded grab-handle, rust-resistant nickel-coated D-ring and reinforced nylon stitching. - Fully padded with breathable mesh lining for comfort. -Heavy-duty nylon straps, and body padding for comfort and security. - Fully adjustable for a secure fit, with a removable chest pad for increased freedom of movement. - Adventure-ready with increased functionality including tool holders and accessory clip. -Reflective stitching and piping as standard, to increase visibility in low light. -Utility pocket compatible with Tractive technology. This is the medium harness. Girth measurement: 68-86cm.