The Tirrinia Large Pet Backpack Carrier is perfect for carrying your pet out on the go. With a spacious interior, this backpack can accommodate most small/medium sized pets up to 18 lbs. The bottom is hard, but the bag comes with a removable soft pad for added comfort. There are two entrances on the front and one on the top, which can meet your needs at the same time. The backpack is equipped with a firmly reinforced structure to prevent it from collapsing on your pet, and it’s available in six colors to choose from!