This stylish and functional Pet Carrier is interchangeable, and airline approved when used together. The Miso Pup Mesh "base" Pet Carrier can be used alone as a traditional airline approved pet carrier, with mesh panels on all sides and the top, allowing for maximum ventilation and visibility for you little one. The outer "shell" tote can also be used as a tote bag, hand bag or carry all, when pup can't come with you. Strategically placed snaps, allows the bags to nestle together and/or allow you to change the look of your pet carrying bag, while reducing your pet's stress and anxiety by allow them to travel and be toted in their very own familiar pet carrier. The sides of the "shell" totes, unzip so that you can wrap and snap it to the inside of the mesh "base" , creating a comfy head rest. All Miso Pup "shell" totes also have side slip pockets and a bottom compartment for a tablet, iPad or even potty pads, creating a more balanced carry on your shoulder, and allowing your pet to sit safely on top of your heavy belongings. The Miso Pup Interchangeable Pet Carrier is versatile, functional and the better, smarter, more stylish way to travel & tote your PupSize Dog.