1. It is made of highquality polyester fiber, which is comfortable, wearresistant, and durable. The size is suitable for cats and dogs of various sizes. The transparent design allows you to see your pet at any time. 2. Large capacity: The size of the astronaut cat bag pet backpack is 33x25x42cm/14x10x16 inches, which is large enough to hold your pet's daily necessities such as food, water, snacks, toys, and other items. The front pocket is designed for small items such as mobile phones, keys, and tissues. 3. Breathable and comfortable: The astronaut cat bag pet backpack has a mesh design on the back and sides, which provides good ventilation and breathability, keeping your pet cool and comfortable during outdoor activities. The soft and comfortable sponge padding inside the backpack is also very suitable for your pet to rest and sleep. 4. Easy to wear: The astronaut cat bag pet backpack has an adjustable shoulder strap and a top handle, which can be easily worn by your pet or you. The backpack is also equipped with a belt, which can be fixed to your pet's body to prevent it from running away.