With a Gear4 D3O back cover, the back of your Apple iPhone X is protected against scratches, drops and bumps. The side of the case is made of D3O material. This material consists of particles that clump together and harden if you drop the cover or if something bumps against it. The particles automatically separate again after the moment of impact. Thanks to the D3O material, the Gear4 covers protect your smartphone very well, and are relatively thin. The back cover has recesses on the side, bottom and top, so you can easily use the buttons and inputs on your smartphone.