Petskd Top-Expandable Pet Carrier 18x13x9.5 Inches Southwest Allegiant Airline

【AIRLINE APPROVED CARRIER 】Unfolded size:18"L×13"W×(9.5+3.5)"H, Petskd pet carrier is TSA approved and can be placed under the seat in the cabin, it is mainly designed for ①Southwest Airlines:18.5x13.5x9.5"②Allegiant Airlines:19x16x9", but also in compliance with ③Air Canada:21.5x15.5x10.5". We recommend you buy this carrier when you fly with the above-mentioned airlines. 【CHECK SIZE BEFORE BUYING】In order to fit the under-seat dimensions of airlines, this carrier can only fit small dogs and cats. We recommend that the pet size you carry be within 15"L x 11"W x 10.5"H and weight under 12LBS. Please don't choose the carrier only based on weight but also reference your pet's length and height. 【BETTER VENTILATION】Petskd pet carrier has mesh ventilation on 5 sides for good ventilation and good viewing—perfect for your pet to look out and for you to check on your pet;the Dog carrier has 3 openings, and each opening has two non-slip zippers to ensure pet safety. 【SAFE DESIGN】Soft dog travel carrier bag upgraded structural design of stainless steel and Fiber rod that makes our dog carrier bags for small dogs will not be out of shape or sagged and the top does not collapse, pet dog carrier bag preferable stability. Built-in adjustable rope buckle, easy to lock the collar. Zipped snap lock to avoid pets to open or grab open the zipper. 【DURABLE MATERIAL】Made of waterproof, non-toxic, scratch-resistant polyester fabric material, waterproof and wear-resistant; after comparing similar p