Pet Carriers Important Information Material:Oxford Cloth Package Size: Size: S, Bust: 39cm-47cm/15.35"-18.5", Back Length: 26cm/10.24" (Approx.)Size: M, Bust: 52cm-70cm/20.47"-27.56", Back Length: 31cm/12.2" (Approx.)Size: L, Bust: 60cm-78cm/23.62"-30.71", Back Length: 41cm/16.14" (Approx.)Size: XL, Bust: 66cm-86cm/25.98"-33.86", Back Length: 54cm/21.26" (Approx.) Overview: In fact, the pet backpack is lightweight, soft, wear-resistant and not easy to tear because of the Oxford cloth material. And your pet will feel cooler and more comfortable because it's breathable. Because this pet backpack which can be a nice shooting prop can help you easily carry your pet to the outdoors, hiking, camping and walking, it is easy to carry. It is constructed of oxford cloth material. There are four sizes that you can choose from. It can help you easily carry your pet to the outdoors, biking, hiking, camping and going out for a walk.