A flip case (bookcase) wraps around the iPad Air 11” (2024) / Air 6 like a book and covers the display too. That protects the screen in your bag and usually adds a card slot.
Many models include a stand function so the iPad Air 11” (2024) / Air 6 props up for video, and a slot for one to three cards. Look for a magnetic closure that holds well and a cutout that lets you take calls without opening the cover.
If you want a slim device, a back cover suits you better. If you want cards and screen protection in one, take the flip case.
The iPad Air 11″ (2024) is the M2 Air in the new 11-inch format — LED Liquid Retina 11″, M2 chip and USB-C. A good case protects the display and the aluminium back from scratches, drops and table edges, and preserves the resale value of your device.