- Protect your phone and make it compatible with a variety of optional accessories by using the Mobile Everyday Smartphone Case with Loop for iPhone 13 Pro from Peak Design. The slim 0.1" case provides a stylish and durable nylon fabric skin, as well as a rubberized bumper for drop protection. The back of the case sports Peak's proprietary magnetic-mechanical SlimLink connector with Zirconia ceramic locking ring, making your phone compatible with Peak's Mobile ecosystem of mounts, stands, and wallets. As an added bonus, this version of the Everyday Case has a quick-deploying finger loop for holding your phone with one hand to snap photos, watch streaming videos, and more.