About this item Expandable Pet Carrier: Mesh on 3 sides including 2 expandable sides allow for your pet to breathe easily and a full view from inside. Roll-up flap over the top mesh opening can help to reduce your pet’s anxiety and encourage rest while traveling. Versatile Dog Carrier: Additional luggage straps that can be attached on to suitcases makes for easy transportation, whether flying or in a vehicle. Front buckles allow for connecting to vehicle seat belts and adjustable straps ensure a secure hold when traveling in public or private vehicles. Security and Safety: Locking cute claw-printed zippers ensure your pet can't jump out of the pet carrier. Interior harness clip helps keep your pet secure on the road or in the air. 4 bottom studs evenly distribute weight and prevent the bag from slipping or sliding. Sherpa-lined Padding: 100% microfiber polyester Sherpa fiber pet bed provides comfort throughout the trip. The outer cover of the liner is easily removed for dry cleaning or hand washing. The padding can also be secured by the velcro on both sides. Dimension:M size Lesure Expendable Pet Carrier measures 18”x11”x11”, which fits dogs measuring up to 16.5”x10”x10” and under 10lbs, or cats up to 15lbs. The M-size pet carrier is ideal for cats and smaller dog breeds (Pomeranian, Poodle, Maltese, Yorkshires, Bichon, Chihuahua, Beagles, etc.) Lesure’s pet carrier is approved by most airlines, so your furry friend can safely lie under the seat in front of you during your trip (only for the M Size).