Expandable and Large Capacity - This expandable pet backpack offers ample space for traveling with cats or small to medium-sized dogs. It supports cats up to 15 catties and dogs up to 10 catties, providing room for your pet to travel comfortably. The expandable design increases capacity when needed for larger pets or longer trips. Durable and Supportive Structure - Built with a combination of 600D Oxford cloth, nylon mesh, a steel wire frame, and fiber rod support, this backpack is designed to be durable and provide a stable enclosure for your pet during travel. The structure maintains shape and safety in movement. Breathable and Comfortable - Nylon mesh sides promote airflow to help keep your pet cool and comfortable on the go. The design is practical for travel and daily use, and the backpack folds for compact storage when not in use. Medium to Hard Hardness - The medium to hard structural balance secures your pet inside while offering enough support for them to relax. This setup aims to provide a safe, comfortable experience during travel. Convenience and Portability - Foldable design allows easy storage when not in use. The combination of materials and construction makes the backpack sturdy yet portable for on-the-go pet owners. Use scenarios - City travel and errands: Take a cat or small dog along for urban trips, park visits, or appointments without compromising safety or comfort. - Vet visits and day trips: Convenient for transporting your pet to the veterinarian or for short excursions away from home. - Outdoor activities: Suitable for light hikes or family outings where a secure, breathable carrier is beneficial for your pet. Specifications at a glance - Pet compatibility: cats up to 15 catties; dogs up to 10 catties - Materials: 600D Oxford cloth, nylon mesh - Structure: steel wire frame, fiber rod support - Features: expandable capacity, foldable for storage, breathable sides, stable hardness level (medium to hard)