Just last week, a leak revealed what Apple's "TechWoven" protective cases will supposedly look like, which will be offered in the future as a more expensive alternative to silicone protective cases. Bloomberg editor Mark Gurman now reports that Apple has internally tested another case specifically for the iPhone 17 Air, which protects the frame but leaves the back open. Whether this protective case will actually come to market remains unknown.
In any case, the design of this case is said to be reminiscent of the bumper that Apple originally introduced for the iPhone 4, which many iPhone 4 buyers ultimately received for free after it became apparent that the antennas in the frame could still be blocked by the user's hand when no case was used. A bumper has the dual advantage that the ultra-thin case of the iPhone 17 Air does not become thicker, and protects smartphone from drops.
Since the entire frame is protected, it is much less likely that the display or back will break in the event of a fall. However, a bumper does not protect the back from scratches. Over the past few years, several accessory manufacturers have refined the bumper concept to demonstrate how contemporary such a case can look.
For example, the Arc Pulse replaces Apple's plastic frame with two aluminum attachments for the bottom and top edges of the iPhone, while the RhinoShield Bumper is designed to be particularly lightweight and drop-resistant thanks to its honeycomb structure.