Product description Colour: red, grey, black S: 23 x 12 x 42 cm, M: 25 x 12 x 48 cm L: 28 x 12 x 57 cm br/>Material: high quality oxford fabricContents: 1 x backpack for dogs.1. COMFORTABLE MATERIAL- This bag is made of machine washable, breathable, soft fabric. The material is thick enough to ensure softness and make your pet feel comfortable. Large ventilation windows on both sides of the backpack are comfortable and breathable.2. SECURE- This pet carrier bag easily holds your pet and features a safety buckle to ensure your pet's safety. The front of the backpack and the shoulder strap are designed with reflective strips to ensure safety at night.3. Outdoor Lifesaving Whistle- When you encounter an unexpected situation, you can whistle for help. The shoulder strap slider can be adjusted up and down, suitable for all types of people.4. SUPERIOR COMFORT FIT AND COMFORT- The back and shoulder straps are designed with extra thick padding to provide comfort during long journeys. Zippered pocket where you can store coins or gadgets, keys, cards, etc.5. No matter where you go, I will follow you - Whether you are walking, walking, hiking, weekend adventures, travel, shopping, cycling, underground, etc. Suitable for medium-sized dogs, keji, teddy, French bulldog, Shiba Inu, not for large dogs .