【Rear Expandable Space – Double the Room for Comfort】Unzip the rear panel to instantly expand the interior space by nearly 2X! The expandable design gives your pet more room to stretch, lie down, or turn around comfortably. It also improves airflow, helping your furry friend stay relaxed and stress-free during travel 【Superior Ventilation & Clear Visibility】Your pet deserves fresh air and a great view! This upgraded backpack features 1 large transparent acrylic window, 3 breathable mesh panels, and 9 air holes for maximum ventilation. Let your pet enjoy the journey while staying cool and connected with the outside world 【Stable & Safe Design – Built to Protect】No more collapsing backpacks! The reinforced structure keeps the carrier sturdy at all times. A built-in safety leash ensures your pet stays secure when they peek their head out of the top window, preventing any unexpected escapes 【Comfortable for You, Cozy for Your Pet】Designed for long walks and adventures—this carrier comes with padded shoulder straps, adjustable chest and waist buckles, and an ergonomic back panel that evenly distributes weight. You’ll enjoy superior comfort and stability, even during extended use 【Perfect Fit for Small Pets up to 25 lbs】External size: 15.6"L × 11.8"W × 19.3"H; Internal size: 15.4"L × 11"W × 17.7"H, expanding to 16"L × 23.8"W × 19.3"H. Ideal for cats or small dogs up to 25 lbs. Please measure your pet’s body length (front feet to tail base) and height (floor to head top) before purchase to ensure the perfect fit At COVONO, we focus on taking perfect care of your pet and are committed to providing you with something different, something better. The COVONO Expandable Pet Carrier Backpack comes with rear expansion design, large transparent acrylic window and super ventilated system, is designed to keep your pet protected, secure and comfortable when you are out with your pet, such as routine trips to the vet, travel, hiking or camping.

360° Airflow
The 3 sides of the backpack come with 3 mesh windows and 9 venting holes, to keep the air circulating and fresh. Your pet can breathe freely and stay comfortable.

Expandable Space
With the expandable design, the space inside the backpack can be doubled. The expandable part uses stable steel frame, can bear load without deformation.

4 Entrances
The backpack features front, rear and side openings, which allow for effortless entry and stress-free loading.

Ergonomic Design
It provides adjustable padded shoulder straps, sternum buckle and waist buckles, to reduce the burden on shoulders and maintain the stability during travel.

Improved Mat
The hard wooden board inside the cozy fleece mat can enhance the stability of the base while the large Velcro ensures the mat can be kept in place easily, no need to deliberately adjust the position of the mat.

Transparent Window
It features a large transparent acrylic window, which is perfect for your pet to look out and for you to check on your pet (tear off the protective films on the both sides of the acrylic board before use).

Attention:
Measure your pet before purchasing. Do not select the backpack size based on weight only, please reference your pet's length and height in selecting a backpack size.