Cat Carrier Outdoor Portable Handheld Pet Bag Foldable Expandable Pet Backpack Breathable Cat Crate Cat Backpack for Small Medium Large Size The inside of the backpack is made of waterproof material, which increases safety and eliminates the worry that urine or rain will seep to the outside of the backpack. The backpack's zipper is durable and not easy to damage, and the hook is sturdy, which can be safely hung anywhere, and convenient to carry. The keel edge design of the backpack makes the backpack three-dimensional and more beautiful. The breathable mesh design on the side of the backpack can keep the inside of the backpack ventilated and the 's claws from scratching the backpack. This backpack comes with a removable and foldable plush mat, which is convenient for cleaning and storage, and also provides a comfortable resting environment for pets. Specification: Package size: S- 40*26*6cm; L- 45*31*6cm Package weight: S- 1.2kg; L- 1.4kg Optional size: S -40*25*25cm(Expanded-65*40*25cm) ; L -45*30*30cm(Expanded-82*45*30cm) Optional color: Grey with blue wrap / Light grey with fluorescent green wrap / Black with red wrap / Black with white wrap / Black with black wrap Material: 600D Oxford fabric Package list: 1* carrier