Take your furry friend aboard with the Southwest approved pet carrier. It fits easily under the seat in front of you for smaller pets up to 15 lbs. The floor is removable for easy cleaning and mesh construction allows for proper ventilation for your pet. Added padding on the carrying straps allows for easy carrying. Dimensions: 17'' L x 9.5'' H x 11'' W Just used one time on the plane only from San Diego to Oakland.