· This expandable pet carrier measures 17x11x9.5 inches, meeting TSA airline requirements for in-cabin travel and fitting under most seats. · Top and dual-side expansion panels create up to 200% more space, allowing your pet to stretch out comfortably during trips. · Five mesh panels provide 5x higher airflow than IATA standards, keeping pets cool and reducing stress in crowded environments. · Built-in privacy curtains on all sides roll down to block noise and light, creating a calming safe space for anxious travelers. · Five secure entrances feature self-locking zippers plus safety locks to prevent escapes; an internal tether adds extra security.