Under Armour Protect Verge
In case you didn't know, the sports and fitness brand Under Armour makes smartphone accessories. Not only that, but they create some pretty durable cases that have some neat feature as an added bonus.
The Under Armour Protect Verge is a rather simple looking clear case, but it works with the UA Connect System, which is a system of accessories and mounts for active people. Including magnetic mounts.
Additionally, Under Armour cases meet military-grade testing too. The Protect Verge passed an 8ft drop directly onto concrete, which is exactly what you need during a mountain bike adventure or rock climbing. For everyone else, these are durable cases with a lot of accessories in case you need one. Mount it to your motorcycle, car, bike, boat, whatever.