Durable and Large: This flexible dog backpack is made of environmentally friendly polyester and is scratched resistant. Leave enough space for animals to feel comfortable when traveling. Size 46.7 x 45.9 x 8.8 cm, suitable for most small and medium-sized cats and dogs Ventilation and interaction: The animal carrier has two inputs and your pet can Extend the head. For more convenience, the upper cushion can be wrapped. Three breathable mesh windows offer visibility and ventilation. Security design: The robust zipper has a solid structure and a closing function, so your ugly friend can not open the door alone. Practice: The pockets on both sides offer space for belts, water, snacks, toys and other important utensils. The pet backpack is foldable for easy transport and cleaning. COMFORT: The adjustable back and straps are equipped with a very thick padding, which can reduce pressure on the shoulders and back and increase port comfort. No kettle or fan. Have you met this kind of problem?