Chest 24" - 28" 1" 40 - 65 . Airedale Terrier, American Staffordshire Terrier, Azawakh, Bull Terrier, Char-Pei, Ibizan, Plott, Pointers (most), Portuguese Water Dog, Redbone Coon Hound, Saluki, Standard Schnauzer, Sloughi, Spaniels (most), Spinone Italiano, Whippet. LG Neck 16" - 20" Chest 28" - 32" 1" 60 - 85