[Pet Backpack Carrier-Designed for the maximum convenience and comfort for you and your pet while hiking traveling or taking your best friend to the vet or going for a walk in the park. Measures approximately 11.4" x 12.6" x 16.8" (L x W x H).Always keep in mind each airline sets their own specific requirements and they can even vary from their domestic international and shuttle services so it is always advised to check with your airline of choice. Ventilated Cat Carrier Backpack--Our pet backpack has well ventilated design for optimal airflow two-way entry for easy access zip up mesh window for more headroom and visibility. This dog backpack carrier is reinforced with firm structure making this the perfect weekend dog backpack for hiking camping dog walking pet traveling road trip airplane travel. Superior Comfort--The back and shoulder straps of the dog carrier backpack are equipped with extra thick padding for more comfort during long trips. This cat backpack comes with both waist and chest buckles to give you extra support. "Easy-Access Breathable Design: Our foldable pet backpack features a unique ventilation design for optimal air circulation to keep your furry friends cool. The easy-access design includes two side and top mesh windows for visibility and communication helping ease your pets anxiety." Comfortable Design-- The fiber frame of the strap provides sufficient support to prevent the top from sagging. This pet carrier floor mat has a built-in 5mm honeycomb panel which to prevent the base from sagging when carrying it.The bottom is equipped with a soft cushion to let your pet rest while absorbing moisture and some stains easy to clean.]