The five-in-one I GO 2 Plus Traveler has telescoping handle with wheels, to function as a rolling case. Can be used as a backpack, tote or car seat and meets most airline travel regulations (please check with your airline prior to travel). The Plus Traveler offers a hard shell for your pets protection. Comes with removable plush pad for easy washing, tether to secure animal and wheel cover. Ideal for pets up to 25-Pounds.