This backpack is suitable for small or medium-sized cats and dogs when they go out. The transparent space capsule pet backpack helps reduce the anxiety of the pet and keeps it clearly visible of the surrounding environment, enabling it to observe the surroundings in a safe environment. The design is breathable and comfortable, with a total of 9 holes, and there is a mesh fabric design on the side for air circulation. The material uses a combination of Oxford cloth, acrylic and polyester, which is sturdy and durable. It can be carried on both the front and back, or carried by hand. Its design takes into account practicality. There is a zipper on one side for the pet to enter and exit easily, and the other side is designed as a bag for storing items, such as umbrellas or the pet's water. When going to the veterinarian or going on a trip, choosing this backpack can free up hands and provide a safe and comfortable activity space for the pet.