Product Size Medium-Recommend weight from 4.4 to 11 lbs(2-5kg), measure your pets length and weight together for accurate reference According to Size chart, Suitable for Puppy, Small medium dog, Mini poodle, Mini Schnauzer, Mini Teddy, Chihuahua, Small Pet etc. Adjustable Straps & Interior Drawstring-Pet carrier backpack adjustable lightweight padded straps help to reduce the burdens Pressure. Extendable waist strap with buckle keeps the backpack stable and secure, Interior rope with clip can connect to your Pet's harness to prevents your dog and kitten from jumping out or hurt itself. Padding Panel & Removable Bottom Cover-With EPE foam padded back and sides carrier backpacks, Reducing the burdens pressure and offering more comfort to you and your pet, help your pet enjoy a nice outdoor trip. The removable waterproof bottom cover makes it easier to wash and clean. Mesh Ventilation Design-The material polyester fiber and breathable lightweight mesh, Zipped top entry allows for easy access. Dog carrier backpack has 3 mesh pockets, the side and front pockets help store leash, water, snacks, treats and other. Ideal for outdoor trips, training, sightseeing, camping hiking and etc. Adjustable Visible Peep Hole-Dog carrier backpack has a drawstring opening neck hole on the top of the backpack to keep your pet stick their head out, make them comfortable and visible, enjoy the entertainment with their host in outdoor and indoor, adjustable and flexible hole string and soft mesh padded, keep your Pet security and comfort.