I need an actual 1 liter wide mouth water bottle with a lid. The 1 liter wide mouth Nalgene is great, EXCEPT for the weight. Do you know of another option, which still is actually 1 liter (not more or less) and has a wide mouth (I need the wide mouth for stirring my SteriPen)? I also hope that the container will have the 100 mL increments on the side of it (like the Nalgene), but I guess I could somehow mark it myself if it doesn't have them.