Expandable Pet Carrier Backpack for Cats, Dogs and Small Animals, Portable Pet Travel Carrier

‌"REAR EXPANDABLE DESIGN: With the rear expandable design, the space inside the cat backpack carrier can be doubled. It not only increases air circulation, but also allows your pet to stay in it more comfortably and move around more freelyBETTER VENTILATION&VISIBILITY: The most important improvement of this pet carrier backpack is to ensure excellent ventilation and visibility at the same time. 1 large transparent acrylic window, 3 breathable mesh windows and 9 venting holes, provide plenty of air and excellent view for your petsSTURDY& STRUCTURE: Equipped with a firmly reinforced structure, to prevent the backpack from collapsing on your pet while traveling. When you open the top mesh windows to let your pet stick his head out, the ty rope inside can prevent your dog from running away" "REAR EXPANDABLE DESIGN: With the rear expandable design, the space inside the cat backpack carrier can be doubled. It not only increases air circulation, but also allows your pet to stay in it more comfortably and move around more freely BETTER VENTILATION&VISIBILITY: The most important improvement of this pet carrier backpack is to ensure excellent ventilation and visibility at the same time. 1 large transparent acrylic window, 3 breathable mesh windows and 9 venting holes, provide plenty of air and excellent view for your pets STURDY& STRUCTURE: Equipped with a firmly reinforced structure, to prevent the backpack from collapsing on your pet while traveling. When you open the top mesh windows to let your pet stick his head out, the ty rope inside can prevent your dog from running away"