Transparent Window: Pet carrier has a transparent window design, which is convenient to observe the state of the pet and also meet the curiosity of the pet to observe the outside world.Breathable Mesh and Holes: The pet carrying bag is designed with multi breathable mesh and multiple ventilation holes to create a better ventilation environment for pets.Spacious Space: Cat carrier backpacks have spacious space for flexible pet activities, recommended for cats within 4kg/8.8lb, dogs within 2.5kg/5.5lb.Easy to Carry: The pet carrier can be carried not only on the back, but also in the hand. Convenient for bringing a puppy or kitten for hiking, camping or going out for a walk.A Variety of Ways: Pet travel carrying bag has a variety of ways to wear, can be slung over one shoulder, can be handheld. Lightweight and portable, convenient for travel.