If our pet loves to travel as much as you do, you have to invest in a reliable pet carrier. There is the Sherpa Bag on Wheels that was designed by a flight attendant and is approved on most airlines. There are easy-glide wheels for smooth motion, mesh panels on all sides for ventilation, convenient travel tray “bed in a bag”, and fits comfortably under the seat. The bag can fit pets up to 22 pounds. Just remember to take your pet out of the bag when you go through security.