- Upgraded Larger Cat Backpack: Designed for pets weighing up to 18 lbs, this backpack features an expanded size of 11.8" x 11.8" x 13" and a non-expanded size of 13.4'' x 11.8'' x 15", making it suitable for most cats, small dogs, and rabbits. - Collapsible and Expandable: The innovative expandable back provides your pet with extra room to move, helping to alleviate anxiety during travel. The collapsible design allows for easy storage when not in use. - Breathable and Visible: Equipped with 4-7 tear-resistant mesh panels on the front, top, and sides, this carrier ensures excellent ventilation and visibility, allowing you to easily check on your pet. The top opening lets your pet peek out comfortably. - Travel Friendly: Featuring a breathable back panel, padded adjustable shoulder straps, and a chest buckle, this backpack is ideal for traveling, hiking, walking, and outdoor activities, offering a reliable solution for pet transport. Use Scenarios: 1. Perfect for outdoor adventures, allowing you to hike with your pet securely on your back while they enjoy the scenery. 2. Great for trips to the vet or pet daycare, providing a comfortable and safe environment for your pet during transport. 3. Ideal for city strolls, allowing your pet to stay close to you while enjoying fresh air and new sights without the stress of being on the ground.