Versatile Carrier: This large pet backpack is designed to comfortably accommodate small dogs and medium cats up to 18 lbs, making it perfect for travel, hiking, or everyday use. Expandable Design: The backpack features an expandable structure, allowing you to adjust the size to suit your pet's needs and provide ample space for movement. Ventilated Comfort: The carrier is well-ventilated, ensuring proper airflow and keeping your furry friend cool and comfortable during their journey. Convenient Access: With multiple entry points and a foldable design, it's easy to place your pet inside and remove them when needed. Durable Construction: Made with high-quality materials, this backpack carrier is built to withstand the rigors of outdoor adventures and daily use.