1、Removable and foldable plush mat: This pet 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. 2、Waterproof material inner clip: The inside of the backpack is made of waterproof material, which increases safety and eliminates the worry that pet urine or rain will seep to the outside of the backpack. 3、Durable zipper and sturdy hook: The backpack\u0027s zipper is durable and not easy to damage, and the hook is sturdy, which can be safely hung anywhere, and convenient to carry. Features: Removable and foldable plush mat: This pet 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. Waterproof material inner clip: The inside of the backpack is made of waterproof material, which increases safety and eliminates the worry that pet urine or rain will seep to the outside of the backpack. Durable zipper and sturdy hook: 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. Scratch-resistant ventilation mesh: The breathable mesh design on the side of the backpack can keep the inside of the backpack ventilated and prevent the pet's claws from scratching the backpack. Keel edge design: The keel edge design of the backpack makes the backpack three-dimensional and more beautiful. Specification: Optional color: Grey with blue wrap / Light grey with fluorescent green wrap / Black with red wrap / Black with white wrap / Black with black wrap Optional size: S -40*25*25cm(Expanded-65*40*25cm) ; L -45*30*30cm(Expanded-82*45*30cm) Material: 600D Oxford fabric Package size: S- 40*26*6cm; L- 45*31*6cm Package weight: S- 1.2kg; L- 1.4kg Package list: 1* Pet carrier 1* Pet carrier