A bag, a car seat, and an in-flight carrier - This is the andblank Pet Carrier.
andblank® pet carrier is light, durable, and stylish. It also doubles up as a car seat or in-flight carrier for your beloved pet. The andblank pet carrier may be a good option for taking your pet on a holiday on one of these airlines that allow pets in cabins. 
The award-winning design can hold up to 7kg of weight. It also comes with a detachable outer pocket, which can be used as a walking bag to hold poop bags, mobile phone, money, keys, etc..
Not only that, the strap of the bag can be converted into a car seatbelt so you only need one bag for all your adventures.
 
Feature
Lightweight
Roomy
Well-ventilated mesh top
Detachable walking bag
Inner leash ring to secure your pet
Removable inner base pad
Dual function strap