[Durable & Large Size: 39.37x 19.6 x 10.6 inches After Fold Size is 39.37X26.38X 19.6inch. Soft-sided pet backpack is made of nylon durable to withstand scratching. Providing roomy space for your pet to stay comfortable during the trip. Easily fits most small medium sized dogs and cats like Chihuahua Pomeranian Corgi Poodle Schnauzer Maltese Papillon Beagle and more puppies or Russian Blue Bengal and more kittens. Smooth & Flexible Wheels: The four wheels are detachable. Wheels smooth-rolling mobility in any direction. Convenient disassembly and assembly of the wheels. The four wheels correspond to the four buttons at the bottom of the bag. Simply push the buttons to easily install and unload the wheels. Telescoping handle stores out of the way just like a suitcase.Telescoping handle is aluminum alloy Rods. Wheels: high-quality polyurethane double wheels provide extra stability and durability. Padded Shoulder Strap & Removable Mat: Two side for all seasons. At the bottom it comes with a comfortable soft pad for your pet to rest which is removable and washable for easy cleanig. One side is cooling farbic for summer one side is warm farbic for winter.Both the back and adjustable shoulder straps of the dog backpack carrier are equipped with extra thick padding which help to relieve the burden of your shoulder and back making it more comfortable to wear. 2 different ways to carry - Handle Pet Carrier Bag / Travel StrollerOur carrier seamlessly converts into a backpack wheeled carrier car seat and pet bed so you can bring your dog or cat just about anywhere. 3 Pockets provide room for store. Pockets on both sides one side is bottle pocket and the Dog Poop Bag Holder other side is zipper pocket for you put any dog snacks toys and other essential supplies. One zipper bag is inside in backpakck.]