JULIUS-K9 IDC Multifunctional Dog Harness made of neoprene | Size: XL (chest measurement: 29,5-36/75-92 cm) Small: Chest/Girth (17.3 - 25") 44-64cm Medium: Chest/Girth (21.6 - 28.3") 55-72cm Large: Chest/Girth (25.5 - 32.2") 65-82cm X-Large: Chest/Girth (29.5 - 36.2") 75-92cm