【Ergonomics Design】No more carrying pressure. The enhanced cat backpack carrier features an added waist protection design at the back, delivering a better fit for extended journeys. It effectively alleviates the burden, resulting in a more effortless and enjoyable travel experience for both you and your furry companion 【Safety First】This cat travel backpack is equipped with a built-in adjustable safety rope and a lockable zipper, ensuring effective prevention of pet escape. The top opening is reinforced to withstand collapsing while traveling, granting your pet a better view of the surrounding scenery. Additionally, the thickened bottom pad prevents sagging, providing a sense of security for your pet during outdoor adventures 【Spacious Interior】 The large cat backpack measures 13"L × 11" W × 15"H and folds easily to carry outside. Providing plenty of room for your pet to move around. Perfect for medium-sized cats and small dogs, Please check the pet backpack carrier size carefully before purchase 【Comfortable and Durable】 This cat backpack for carrying cats features a well-designed ventilation system with mesh windows on all four sides, ensuring optimal airflow and visibility. The top of the cat carrier backpacks and the front screen window are equipped with windproof sunshades, offering both safety and privacy. This reduces your pet’s stress response to external stimuli while traveling 【Travel Best Choice】This cat backpack carrier is made of extra-durable 600D Oxford cloth with a sturdy mesh, no need to worry about getting scratched by your pet, and the two side pockets can store necessary pet supplies, which can be used to carry small dog or cat for biking, camping, outdoor walks, trips to the vet or meetings with friends