2 Pet Carrier Sizes Available - For an optimal fit, our M carrier measures 17.5 x 11 x 11 inches, designed for pets up to 15 lbs. In-Flight Compatibility - The Medium size meets the seating requirements of most airlines. We recommend checking with your chosen airline before traveling as regulations vary. The Large size is versatile for everyday use, whether in a car, next to luggage, or carried in your hand. Reinforced Material - We have upgraded with bite resistance and chew resistance. Scratch-resistant mesh and thick tear-resistant nylon fabric, to ensure a visible, breathable, and safe space for your pets. The high-quality PU leather handle and adjustable shoulder strap with a metal carabiner provide comfort and security during carrying. Thoughtful Features - The cat carriers have 4 mesh windows for ventilation and 3 wide doors that can be opened for easy access. A generous side storage pocket holds more items like water bottles, snacks, and wipes. Equipped with a secure buckle to prevent your pet from escaping. Soft and Flexible. Washable Mat: Unlike typical cardboard bases, we use a waterproof hard plastic board for added stability. Covered with sponge and velvet, it provides a luxurious resting area. Our carrier, including the mat (once the board is removed), is fully washable. Of course, it is foldable if you wish after drying.