Just any harness is not nearly good enough for your sweet dog. This 3-way adjustable ribbon harness is made from high-tensile strength nylon webbing with polyester/nylon ribbons that are stain and fray resistant. Extra strength cast brass hardware and Coast Guard approved plastic buckles ensure your excited pup can't break away. Your best friend will stay comfortable on those long hikes in this stylish harness. XS - 5/8 wide, fits approximately 11 - 14 girth SM - 5/8 wide, fits approximately 14 - 18 girth MD - 5/8 wide, fits approximately 18 - 23 girth LG - 1 wide, fits approximately 23 - 28 girth