Beautiful and cool design, make it relaxed and convenient for your trip with the lovely pet. Built-in safe lock, can lock with dog's necklace so as to prevent dog from sudden jump. Backpack for carrying pet more conveniently. Elastic design in the neckline, can adjust it for pets comfortable feelings. Ventilate grids on both sides, and a hole for tail, pet would not feel stuffy. Suitable for many kinds of pets, such as teddy, poodle.