Popular product! Repeat customers are increasing! Discounts available for simultaneous purchases! Reliable domestic shipping. * New and unused * Instant purchase welcome, no need to ask * Popular product Pet bag size: Width 33cm x Depth 27cm x Height 42cm. Product weight: Approximately 1.5kg. Weight capacity: Up to 8kg. Suitable for cats, small dogs, rabbits, and small pets. Expanded size: Width 27cm x Depth 32cm x Height 36cm. Expanding the extension creates an even larger cage, transforming it into a pet house. It's not only a regular pet backpack but also has an expandable space for cats, making it ideal for evacuations or as a temporary house. This pet carrier backpack for cats and small dogs has been developed for various uses, such as pet visits to the vet, disaster evacuation, train travel, trips to the beauty salon, and travel. It's a backpack-type pet carrier bag, making it very convenient. You can also put pet supplies for outings in the double pockets. Excellent safety: All zippers are lockable, and there is a jump-out prevention lead inside the backpack, so you can rest assured even if your pet suddenly jumps out. It protects your pet's safety. Good ventilation: By rolling up the rain cover on the top, a mesh window can be created, allowing your pet to peek out. Mesh windows are also attached on both sides, providing fresh air and preventing a cramped feeling. The pad placed on the bottom uses different materials on both sides; use the cool side in spring and summer, and the wool side in autumn and winter. The chain on the bottom is fixed to prevent deformation due to weight and to maintain the shape of the pet carrier. Easy to fold and assemble: Easily assemble and fold by simply opening and closing the zippers. It doesn't take up space because it can be folded and stored when not in use.