✅【CRASH-TESTED FOR SAFE CAR TRAVEL】: Our small dog car seat or pet carrier has been independently crash-tested in the USA by the Center for Pet Safety (CPS) and certified with a 5-star safety rating for withstanding a crash force of at least 360lbs (Test with the U.S. child restraint system standard FMVSS 213b). This makes us much safer than most dog car seats for small dogs on the market. Most importantly. Please don’t be misled by the 99% of dog booster car seat and dog seat belt for car that are not crash-tested; while they may claim to keep your pet "safe," their only real function is containment. Our puppy car seat is engineered to actually safeguard your pet’s life during a car crash. ✅【EXTRA AIRFLOW & SPACE FOR AIR TRAVEL】: Our airline approved dog carrier is 17" x 11" x 11" and is FAA & TSA‑approved for in‑cabin pet travel on most airlines, such as Delta Air Lines, United Airlines, and American Airlines (which allow a maximum size of 18 x 11 x 11 for cat carriers). Apart from them, Our dog airplane carrier is designed with a unique mesh pocket for pet owners to insert a portable fan to increase airflow during long flights, and you can expand this pet carrier airline approved under the seat to create more room for your doggies and kittens. ✅【EXPANDABLE】: This small dog carrier can be easily expanded in the front to become an expandable pet carrier that provides extra space for your pets. It is thoughtfully designed so that the expandable feature adds almost no weight to the pet carrier for cat . Also, this cat bag looks and performs the same as a normal puppy carrier or dog bag or pet car seat if you don't expand it, so you can keep it as a bonus even if you seldom need the extra space. ✅【HUGE VENTILATION】: This soft cat carrier is designed with ample ventilation from 4 sides, making it super comfortable & safe for your pet to stay inside during long car trips (crash-tested car seat for dogs) or flights (tsa approved dog carrier under seat) . Its mesh/ventilation area is one of the largest among other cat travel carrier. With the expandable feature, ventilation increases from 4 to all 5 sides. Additionally, we can add a portable fan in one of our mesh-designed pockets to enhance airflow and reduce heat in hot weather. ✅【HUGE POCKET SPACE】: This soft sided cat carrier offers one of the largest pocket storage options among other cat bag carrier and can accommodate a lot of cat travel accessories & dog travel accessories. Our kitten carrier is equipped with 4 pockets: one large zippered pocket for carrying bigger items, one small zippered pocket for essentials like a wallet, one fan-friendly mesh pocket for placing a portable fan, and one wide side pocket for other pet supplies. To compare, our pocket space provides almost 50% more space than other pet carrier for dogs. ✅【LIFETIME CRASH REPLACEMENT】: Your pet’s safety is our priority for life. Since a dog carseat can have hidden structural damage after an impact, we advise against ever reusing that dog seat for car after an accident. All customers are invited to register for our Lifetime Crash Replacement Program for FREE. Once registered, you are eligible for unlimited lifetime replacements. If you are ever in an accident with your car seat for dogs, simply report the case to us, and we will send you a brand-new crash-tested dog car carrier to ensure your pet remains protected. To protect your beloved pets, please ONLY use crash-tested dog car seats. Ultimate Safety & Comfort: The 3-in-1 5-Star CPS Certified Pet Travel Solution Experience peace of mind with the only travel system your pet will ever need. Engineered for owners who refuse to compromise on safety, our 3-in-1 Crash-Tested Pet Carrier transitions seamlessly from a high-security car seat to a TSA-approved airline carrier and a comfortable expandable lounge. Unrivaled Crash Protection Don’t settle for simple "containment." While 99% of pet booster seats only keep your pet from moving around, our carrier is a life-saving safety device. Independently crash-tested by the Center for Pet Safety (CPS) in the USA, it earned a prestigious 5-star safety rating. Tested against rigorous FMVSS 213b child restraint standards, it is proven to withstand forces of at least 360 lbs, safeguarding your pet during a collision. Plus, with our Lifetime Crash Replacement Program, we will replace your carrier for free if you are ever in an accident. Optimized for Air Travel Measuring 17" x 11" x 11", this carrier is perfectly sized for in-cabin use on major airlines like Delta, United, and American. The soft-sided design fits comfortably under most seats, while the expandable front allows your pet to stretch out once you’ve reached cruising altitude. Maximum Ventilation & Smart Storage 5-Sided Airflow: Featuring one of the largest mesh areas on the market, our design ensures your pet stays cool and calm. Integrated Fan Pocket: A unique mesh pocket allows you to insert a portable fan to actively circulate air during