Siivton Airline Approved Pet Carrier, 4-Way Expandable Cat Dog Carrier for Under-Seat Travel, Soft-Sided Portable Pet Bag with Removable Fleece Pad, Fits Small Pets Up to 15 lbs (18″x 11″x 11″)

DESIGNED FOR IN-CABIN TRAVEL: Specifically engineered to meet most major airlines’ under-seat dimensions (18″x11″x11″). While the outer size is optimized for boarding, the internal cozy space is best for pets up to 15″L x 9″H. This precise design ensures your pet can accompany you in the cabin rather than in the cargo hold
IN-FLIGHT “FIRST CLASS” SUITE: Don’t let your pet suffer in a cramped box for hours. While the compact design fits strictly under airline seats for takeoff, you can unzip the expandable sides during the flight to give your furry friend a spacious “private suite.” This 4-way expansion provides 150% more room for them to stretch, turn around, and settle in comfortably, effectively reducing meowing and travel anxiety throughout the journey
MEASURE BEFORE YOU FLY: To ensure a seamless boarding experience, please measure your pet’s length and height. Weight (up to 15 lbs) is only a reference. Your pet’s comfort depends on their ability to lie down comfortably within the 15″x9″x9″ interior usable space. If your pet is close to this limit, we recommend our XL size for non-airline use