This soft mesh harness ensures they are safely secured around the body, relieving pressure on the neck. 100% machine washable up to 30 degrees c and 800rpm. This mesh fabric harness features adjustable straps for a comfortable fit. Available in three different sizec– Small, Medium and Large. Please ensure you check the size of your pet against our size chart to avoid having to return your product. Size Waist Circumference Neck Circumference Small 33cm (13\") - 39cm (15.3\") 26cm (10.2\") Medium 46cm (18.1\") - 57cm (22.4\") 34cm (13.4\") Large 52cm (20.4\") - 70cm (27.5\") 41cm (16.1\")