Replacement lid for ION8 leak proof water bottles. This lid features the same one-touch, one-handed operation, smooth flow, and leak-proof design with a safety lock. It comes as a complete unit with new fitted closure seals for the spout, vent, and closure. This small size lid is compatible with ION8 320ml-600ml Recyclon and Steel bottles, allowing you to extend the life of your bottle with a simple lid swap.