Material: This product is made of high quality polyester, which has good wear resistance and stretch resistance, ensuring the stability and durability of the carrier. Breathability: The saddle type design increases breathability and makes your pet feel comfortable during the wearing process, avoiding discomfort caused by wearing it for a long time. Reflective stripes: The reflective stripes on the back strap are designed to improve your pet's visibility and increase safety at night or in low-light environments. Adjustability: The carrier has an adjustable design to accommodate dogs of all sizes, making it more appropriate for your pet to wear. Safety buckle: The safety buckle on the carrier is designed to make it easy for you to quickly put on and take off the carrier for your pet, saving time. Multifunctional: Suitable for daily walks, running, hiking, outdoor activities, etc., allowing you and your pet to share a good time. Size: S: chest size 34-46cm, neck size 34-46cm, fit dog weight 4-6kg; M: chest size 46-56cm, neck size 46-56cm, fit dog weight 6-11kg; L: chest size 56-66cm, neck size 56-66cm, fit dog weight 11-17.5kg. XL: chest size 62-72cm, neck size 62-72cm, fit dog weight 17.5-24kg.