Weight [Recommended for small dogs and cats under 20 lbs] Pet Travel Backpack is specially designed to carry small pets. It is recommended for pets weighing less than 20 lbs. Larger pets may cause discomfort due to added weight. Please measure your pet and select the appropriate size according to the size chart. This pet carrier backpack is ergonomically designed to fit your pet comfortably. Dual-side zipper access allows easy entry and exit. The built-in harness attachment connects to your pet's collar for added security. Features leg and tail openings to enhance comfort and fit. The backpack can be worn on the front or back. Front carry mode allows for easy interaction with your pet during walks. Back carry mode provides freedom of movement for activities such as running, cycling, or hiking. Made from breathable cotton and polyester fabric for durability and comfort. Elastic neck opening offers a secure and flexible fit. Lightweight and portable design makes it ideal for biking, hiking, camping, climbing, and outdoor adventures. A comfortable and convenient choice for traveling with your pet.