Voyager 20oz Stainless Steel Tumbler with Leak-Proof Flip Lid - Double Wall Vacuum Insulated for Hot & Cold Drinks - Perfect for Travel, Office, Gym & Outdoor Activities

One Size Fits All: These Flip Lids fit all Simple Modern Voyager Travel Mugs.
Leak-Proof: The Flip Lid is leakproof when the flap is closed.
Insulated: This lid is double-walled, keeping your drink at the same temperature for even longer.