Description: Comfortable:The padded dog harness with quick snap buckles which make it easy to put on and take off. Breathable and Washable Safe: LED dog harness with 3 Flashing Modes,enhance visibility and safety when out for a walk.Great for evening walks & great visibility for you and people who may not see you Suitable for all kinds of Dogs: The Extra Handle on Top of This Harness Makes it Easier to Control and Walk Hard Pulling and Elderly Dogs, perfectly designed for Easy Walkings, jogging, running, hiking or even training. Size Guide: S: chest 40-50cm/15.7-19.7inch, neck 31-39cm/12.2-15.4inch, recommended weight: 4-7.5 kg. M: chest 47-57cm/18.5-22.4inch, neck 36-46cm/14.2-18.1inch, recommended weight: 7.5-15 kg. L: chest 58-72cm/22.8-28.3inch, neck 45-57cm/17.7-22.4 inch, recommended weight: 15-23 kg. XL: chest 67-85 cm/26.4-33.5 inch, neck 51-66 cm/20.1-26inch, recommended weight: 20-30 kg. Specification: Material: polyester and mesh Size: S - XL. How to choose the size: Choose the right size harness is essential for comfort and reliability. Before choosing the correct size, please measure the circumference of both the chest and neck. Chest wrap tape measure around the deepest part of the dog's chest cage behind the front legs. Neck measuring tape measure around the base of the neck / top of the shoulders. Size Chart: S: 40-50cm/15.75-19.69inch M: 47-57cm/18.50-22.44inch L: 58-72cm/22.83-28.35inch XL:67x85cm/26.38x33.46inch Package Includes: 1* Dog Harness (not included Leads) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!