Product Description: Material: Polyester, Denim; Size: S: Chest Circumference: 13.8 inches (35 cm), Length: 10.2 inches (26 cm), Neck: 9.8 inches (25 cm), M: Chest: 15.7 inches (40 cm), Length: 11.8 inches (30 cm), L: Chest Circumference: 15.8 inches (28 cm), Neck Circumference: 13.4 inches (34 inches (34 inches (34 cm); *Measured when laid flat, please allow for slight errors in size.