Cotton Web Dog Harness XLarge. Fits Girth 35"-40". 1.5" Wide Straps, Mastiff, Great Dane, Cane Corso Made of strong and durable 1.5" wide 100% natural Cotton Webbing, features nickel-plated hardware, metal-enforced eyelets, heavy duty D-ring Chest girth: 35"-40". Most suitable for XLarge breeds Lighter weight, high quality Cotton Webbing. Very comfortable, allows the dog to have relaxed movement of muscles, makes it flexible and efficient. Please measure your dog for fit before you place the order.