Whatever the weather, the 1 L Dopper Insulated is the perfect sidekick to help you drink from the (hot or cold) tap. Come rain or shine or three feet of snow, this insulated bottle will keep your water, tea or coffee hot for 9 hours or cold for 24. And keeps you saving our water sources. All. Year. Long. Its stainless steel body is finished with a durable power coating. It looks amazing and is scratch-resistant.. The three-part design means its easy to fill and easy to clean - by hand or in the dishwasher (max 65 degrees).