Pet and smoke free home. New in box. The Voyager Flip Lid is a replacement lid that fits the Simple Modern Voyager Travel Mug only. The clear replacement lid is leak proof in the closed position. Replacement Lid: This reusable flip lid is designed only to fit threaded, stainless steel Simple Modern vessels in the Voyager Collection. Leakproof: Flip Lid prevents spills and leaks. Dishwasher Safe: Clean in the top rack of your dishwasher.