1.Upgraded backpack has 12 vents and 2 grids form air circulation, better ventilation than the classic style 2.Space capsule appearance could give your pets a window to the world and facilitate you to observe the status of the pets in time. 3.The panel is made of PC shell and the back is made of Oxford fabric. The transparent cover is made of high-density acrylic, which makes the center of the backpack more stable 4.Transparent Cover :180° panoramic PVC transparent mask, pets have a wider field of vision, more security. 5.Circumferential Ventilation: 9 vents and 2 grids form air circulation, the whole bag of natural ventilation, pets breathe more easily. 6.Adjustable Shoulder Straps：Can adjust the length according to the need, the chest strap can effectively reduce the sh.