Dog Life Jacket - Adjustable Reflective Lifesaving Floating Vest, Pet Swimwear, Pet Life Jacket, Pet Safety Jacket Material: Oxford cloth, encrypted lining, sandwich breathable mesh, European standard Velcro Fabric: environmentally friendly silk screen printing, strong three-dimensional sense Lining: Customized encrypted lining size: XXS: Back length 15 cm, neck circumference 19-27 cm, chest circumference 28-37 cm, suitable for pets with a reference weight of 0-3 kg. XS: Back length 21 cm, neck circumference 25-35 cm, chest circumference 30-42 cm, suitable for pets with a reference weight of 3-7 kg. S: Back length 26 cm, neck circumference 36-47 cm, chest circumference 41-53 cm, suitable for pets with a reference weight of 7-9 kg. M: Back length 30 cm, neck circumference 40-48 cm, chest circumference 41-63 cm, suitable for pets with a reference weight of 9-23 kg. L: Back length 35 cm, neck circumference 42-54 cm, chest circumference 50-75 cm, suitable for pets with a reference weight of 23-40 kg. XL: Back length 45 cm, neck circumference 50-71 cm, chest circumference 70-95 cm, suitable for pets with a reference weight of 40 kg. XXL: Back length 48 cm, neck circumference 62-90 cm, chest circumference 88-124 cm, suitable for pets with a reference weight of 40-50 kg. Features: 1) The bright reflective strips make it easy to see the position of your baby when he/she is playing in the water; 2) Velcro wraps around the body and neck to provide security; 3) Sandwich mesh, convenient for baby to perspire and clothes to dry; packing list: 1*Pet life jacket