Product specifications: XS Bust: 26cm-32cm Length: 110cm wide and 1.0cm (suitable for dogs under 4 pounds) S Bust: 32cm-38cm Length: 110cm wide and 1.0cm (suitable for dogs under 4-8 kg) M Bust: 38-45CM Length: 120CM wide and 1.5CM (suitable for dogs under 8-12 kg)