- Expandable Design: This cat backpack features an expandable back panel that transforms into a spacious bubble tent bed, allowing your pet to stretch, play, and rest comfortably during travel. - Unique Capsule Structure: The rugged transparent shell offers a clear view for your pet, while the lightweight and breathable materials ensure comfort. Adjustable and sturdy straps make it easy to carry. - Superior Ventilation: Equipped with mesh areas and nine air holes, this backpack ensures excellent airflow. The breathable mesh fabric provides optimal ventilation for both you and your pet. Additionally, a side pocket conveniently stores a cat water cup. - Easy Interaction: For pets who may be anxious in new environments, the small mesh door on the side allows for easy interaction, helping to reduce anxiety and restlessness. - Airline Approved: This pet bubble backpack is suitable for hiking and outdoor adventures, making it a versatile choice for travel. - Dimensions and Materials: Constructed from durable Oxford fabric and anti-scratch material, this extendable cat backpack measures 12.5" x 11" x 16.5" (L x W x H) with an expandable section at the back measuring 16.5 inches. Weighing only 3 lbs, it is both lightweight and functional. Use Scenarios: 1. Perfect for hiking trips where your pet can enjoy the scenery while being comfortably contained. 2. Ideal for air travel, allowing your pet to relax in an approved carrier that meets airline requirements. 3. Great for day trips to the park, providing a secure and spacious environment for your cat to feel at ease.