EXPANDABLE & COLLAPSIBLE: This pet carrier backpack with an expandable back allows your pet to move around more comfortably and reduces the anxiety. And the carrier can collapse flat when not in use. Measures 13×9.8×16.5 inch, easily fits most small/medium-sized pets, weighing up to 18 lbs. Each airline sets their own specific requirements, so it is advised to check with your airline of choice.
