1Transparent Design: Cats like to pay close attention to their surroundings. The transparent window allows the cat to see everything in the cat's backpack. Satisfy pets' exploration of the outside world and familiarize them with the surrounding environment. 2Ventilation: There are 12 large ventilation holes on both sides and front, and left and right ventilation net ensure fresh air for alternative use. Fully ventilated, allowing your pet to breathe smoothly without feeling stuffy in the bag. 3Durable Large Space: Made of Oxford cloth and PC scratch resistant fabric. 32x17x42cm/16x6.7x16.5in, pets no more than 8 kg/17.6lb are recommended. If your dog is very troublesome, we recommend 5 kg/11lb or less to ensure sufficient space. 4Elastic And Comfortable Back Cushion: Multi layer honeycomb elastic back pad can reduce the contact area with the body. The shoulder straps of the backpack can absorb sweat and relieve the pressure of the backpack, making you feel more comfortable. 5Travel with Your Pet: This comfortable and breathable dog backpack with triangle reinforcement design is specially designed for outdoor and travel. You can use it to bring small dogs or cats to bike, hike, camp, walk outdoors or meet friends