All New Petkit Breezy 2 Smart Cat Carrier White Product Dimension: 13"L x 8"W x 18"H Material: Polyester About this item [Enjoy Outdoor Days] We designed the backpack with appropriate window and hidden zone to meet the curiosity of cats to explore the world, but also to make the sensitive cats feel safe. The tinted window reduces environmental stimulation,to resist the discomfort caused by bright light. The gradient blue pink color makes this backpack more fashion. [Cozy and Breezy] Updated Ventilation system helps accelerate the air circulation.Plus you can adjust the wind power lever by twisting the fan knob.Your pet will get enough fresh air and comfortable temperature. [Light the Night for Your Pet] Built-in lamp help your pet adapt to the long night [Ease Tension of Your Shoulder] The updated back plate and high-tech material reduce the the pressure to your shoulder, to make you feel more comfortable when go out with your pets. [Lightweight] Entire backpack is about 3.5 lbs;13" L x 8" W x 18" H inch（Airline approved-generally acceptable for use,please do consult your airline before traveling),suggested for pets under 17 lbs. [Detachable Design] The detachable design makes this backpack very easy to be cleaned. Please note:The fan needs a power bank.Power bank is not included.