About this item     size of carrier is 17. 5(L) x 13. 5(W) x 9(H),it can be putted under the seat in cabin,it conform to the requirement of Spirit /Southwest /Allegiant airlines. We suggest that contacting with airlines to confirm size before purchase.      This carrier have a 3'' height expandable top,you can fold it down to put carrier under seat in cabin and pull it up to giving more space for pet in other travel time. This carrier also have a accordion-style expandable part in side to providing more space in travel(like backseat in car/ airport when waiting for boarding/space underseat in cabin).      Judging suitability based on weight is not accurate sometimes. this size is external. Please measure the pet's size before purchase,length should be less than 17",width be less than 13" and height be less than 8. 5". [NOTICE:DO NOT BUY THIS if your pet is longer than 17 inches,this carrier IS NOT FOR MEDIUM / LARGE SIZE ADULT DOGS OR LARGE CATS ]     2 metal frames in 2 sides to keep stable and prevent collapse,a hard wood padding to prevent bottom sinking.  Double zipper lock,anti-scratch nettings and a tether in carrier to prevent pet escaping. Hooks and buckles are made of metal,not plastic. 2 pockets with zippers for storage. This carrier also have a good air-flowbility for your pet.     This carrier match size requirement of three airlines(Spirit/ Southwest /Allegiant),so you don't need to buy another one for those airlines. This carrier also can be used for a short distance car travel,like a vet visit.     
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 Color: black
 Brand: 
 Product Dimensions: 17. 5"L x 13. 5"W x 9"H
 Material: Polyester
 Special Feature: Airline Approved, Adjustable Shoulder Strap, Expandable, Locking Zipper, Breathable