Take your cat out to see the world with the PETKIT Ventilated Cat Backpack Carrier! This backpack is designed with a generous window so your pet can enjoy the scenery while staying comfortable. The tinted window keeps out harsh light, providing a calming place for your cat to travel. With mesh panels and multiple ventilation holes, your pet will enjoy great air circulation on the go. The built-in fan provides fresh airflow to keep the temperature inside comfortable. The fan requires a power bank, which is not included. No more fumbling for a switch in the dark! A simple double tap of the controls will gently and gradually illuminate the interior of the backpack so it doesn't startle your resting kitty. This allows your pet to see their surroundings and allows you to peek in on them. Made from strong and durable materials, this backpack is built to last. You don't need to worry about damage from clawing or gnawing, ensuring your cat's complete comfort. The backpack is lightweight, weighing only about 3 lbs. It measures 13" L x 12" W x 18" H, making it airline approved for travel. However, it's always best to consult your airline before traveling. The backpack is suggested for pets weighing 0-17 lbs. The backpack features a detachable pad that allows your pet to wad back and sit inside. There is also a side pocket for carrying a power bank and pet snacks. Overall, the PETKIT Ventilated Cat Backpack Carrier is a spacious and comfortable backpack for traveling, hiking, and walking with your cat or small dog. It provides great ventilation, a built-in fan, and a light feature for added convenience.