Fresh Spring Floral Jacquard Ribbon Step-In Harness - Closeout - Large 80% nylon/5% plastic/5% polyester/10% nickel Harness fits 26in - 42in neck / 24in - 34in girth. There are no standard sizes for dog collars. Please be sure to measure your dog for correct size. Measure around your dog (with string or tape measure) snugly where you want the harness to lay. If you have any questions or problems with sizes please give us a call before ordering. 256-974-0700 Breed Recommendation: Pitbull, German Shepherd, or Golden Retriever Made in U.S.A. with top quality hardware Adjustable both at the neck and the girth