Material: Nylon + Mesh Weightl: 660 g Size: 17.72*14.17*11.81 inches (Please measure your pet first before purchase) Suggested Weight: 0-15lbs for small to medium cats, 0-13lbs for Dogs, Puppies. Features: ✔1.Adopting Nylon + Mesh material which has good quality, is solid and resistant to dirty. ✔2.Hollow mesh design, your pet can breath more fresh air, making it relax and safe. ✔3.Comfortable strap, chest buckle design, the owner will not be uncomfortable to wear it during the travel. ✔4.One side of the backpack has a net pocket where you can place water pot or snacks, another side can be open to facilitate the pet out and in. ✔5. The pet backpack is foldable and easy to carry in three steps: First, open the top and bottom zippers. Second, place the top and bottom covers in the main compartment, and finally, fold the rest to make it flat. ✔6.Suitable for the small cats whose weight in 0-15lbs, and dogs whose weight in 0-13lbs.