SHERPA carriers can also adjust slightly to meet the under-seat dimensions that airlines require. Simply go to the Guaranteed On-Board website, find your airline, print the Guaranteed On-Board form, make sure you have your pet's health certificates, and get ready for takeoff! Sherpa's Pet Trading Company is the carrier source for pets on the go! This exceptional brand features a collection of comfortable, durable soft pet carriers. SHERPA carriers provide plenty of ventilation by allowing fresh air to flow through the mesh panels, so the space is comfy for your pet. Travel in comfort and style with Sherpa™ Original Deluxe™ Carrier. From our best-selling Original Deluxe Sherpa pet carrier to our exclusive Delta and American Airlines pet carriers - we have pet carriers for every breed of small dog and cats. Perfect for traveling by plane or car, for a trip or just to the vet. Patented spring wire frame allows the rear end of the carrier to be pushed down several inches to conform to underseat dimensions. All small and medium SHERPA carriers are a part of this program. The carriers feature leakproof bottoms in case of accidents and zippers that safely enclose your pet.