1. Made of premium material, durable, breathable and comfortable. 2. Transparent design, allow your pet to view sunshine and scenery from the outside world. Several ventilation holes on the side of the backpack, provide suffient air circulation, make your pet breathe comfortably. 3. Smooth zipper, easy to open and close, durable and practical. 4. Ergonomic widen shoulder strap, make you carry your pet effortlessly. Perfect for travelling, walking, hiking and hanging out.