Size:S UNCONDITIONAL SATISFACTION GUARANTY: A commitment to excellent products, and to your satisfaction with them. If you are not satisfied for any reason simply email us and we will replace or refund your purchase. SIZE CHART Size X-Small:Height 5.1 inches,Neck length 10.2 inches,Back length 7.5 inches, Size small: Height 5.5 inches,Neck length 11 inches,Back length 9.1 inches, Size medium: Height 6.7 inches,Neck length 12.6 inches,Back length 11.4 inches, Size Large: Height 7.5 inches,Neck length 13.4 inches,Back length 12.6 inches, Size X-Large: Height 8.3 inches,Neck length 15 inches,Back length 15 inches,