SUPCASE Armband and Case
SUPCASE makes some awesome cases for most smartphones. They have an awesome case with a kickstand worth buying, to watch movies, but for those more active we have something else.
The SUPCASE Armband case will fully protect the Moto X Pure Edition (Style) makes it more water resistant, and safely attaches to your arm while running or working out. It has a safe silicon sleeve and won't fall out, and the rest is pretty self explanatory.