Full Transparent Cat Bubble Backpack A unique clear design window design makes this bag cool and fashionable.It is convenient for your fur kid to explore the world and meet their curiosity surrounding the backpack when hiking, traveling, or doing other outdoor activities. Comfortable & Safe The zippered side window is convenient for pets to enter in and out and no need to zip or unzip the front transparent big windowA built-in elastic security lock prevents your pet from running away when your curious pet leans its head out of the knapsack.A washable soft mat makes your pet comfortable and hygienic Ventilated & Convinient large ventilation holes on both sides and front, left and right ventilation nets ensure fresh air for fur kids.Smooth double-ended zipper to open and close the bag breezily