Cat Bubble Backpack: Clear bubbles provide a transparent view for puppy and cat to easily stretch out the window, enjoy the sun and nature. Suitable for puppies weighing up to 6.8 kg or 7.8 kg. Breathable and ventilated: The honeycomb cover provides excellent ventilation and provides a private space for the furry friends inside. Honeycomb cover and transparent window accessories are included in the package. Large mesh side opening: each side can be zipped up as a giant access opening, mesh shelter to give as much flow as possible. air as possible to avoid clutter. 2 integrated side pockets for leash, harness and food etc. Portable and worn over the shoulder: the backpack weighs only 1.4 kg. Padded pet shoulder straps with adjustable chest buckle for travel and outdoor activities. Abide by Amazon's return policy.