The iPhone 6 Plus and iPhone 6s Plus are wonderful smartphones. They are not designed to be exposed to water and other liquids for too long. The Watershot Pro Line Underwater Housing for iPhone 6 Plus is designed to protect your phone. It has conductive buttons, allowing you to interact with your phone while it is inside.
The case is rated to 195 feet. It protects your phone from impact and external pressure. You get 2 colors to choose from. Costs under $170 at this time.[where to get it]