Featuring an INNOVATIVE 3-IN-1 DESIGN, . Small is suitable for most dog or cats up to 6lbs. Large is suitable for most dog or cats up to 25lbs. KEY FEATURES - Car Seat: Can be secured in place with its shoulder strap as well as with a seat belt. - Airline Compliant Carrier: Meets the in-cabin pet carrier requirements for most major U.S. airlines. - Flexible Rear Frame: Conforms to under-seat requirements on smaller aircraft. - Pocket Insert: Large sizes include a removable pocket insert that provides more structure for everyday use. - Bonus Leash Included: Shoulder strap converts to an extra strong leash. - Extras: Over-sized storage pocket and removable fleece lined dog bed. - Materials: Marine grade water-resistant 1200D polyurethane, mountain climbing rope.