The Puppia Fall & Winter line is perfect for dogs in need of a new look! It includes a variety of cute and adorable new patterns and designs. These new harnesses provide the perfect warmth for the cold months while keeping your pet stylish all season round. Small: 8.7" Neck Girth / 11.8" Chest Girth / 5.9" Body Length Medium: 10.2" Neck Girth / 13.8" Chest Girth / 6.7" Body Length Large 12.6" Neck Girth / 16.1" Chest Girth / 7.9" Body Length X-Large: 13.8" Neck Girth / 18.1" Chest Girth / 8.9" Body Length