All4pet DH-V50B Comfort Control Dog and Cat Easy Walking Harness Padded Vest, Medium, Blue Usability: soft, very well made, comfortable harness easy to fit on, adjustable chest belt and quick-release buckle Comfortable: high quality,made of soft, lightweight and breathable material, 100% polyester Safty: the pressure is distributed evenly across the chest area so that the neck is unaffected nor pulled excessively during walks Machine washable: easy cleaning and re-usable Medium size - the circumference of head should be 12.75 inch, 14 inch neck girth, 16-20 inch chest girth