Frequently Asked Questions
Where can I buy a Runsip® Flex lid?
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- You can click Purchase Now in the above menu to buy a Runsip® Flex lid via these web pages without leaving Instagram or Facebook.
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- How do I use a Runsip® Flex lid?
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Click Home in the above menu where our Home page shows illustrations and videos that depict each step necessary to best use a Runsip® Flex lid.
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Further information can be found on our full web site (https://www.runsip.com). You are currently viewing our content from within Instagram or Facebook.
- What cup size will a Runsip® Flex lid work on?
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A Runsip® Flex lid will work on most cups that hold between 8 and 20 fluid ounces. More precisely, it works best on cups with an internal diameter of between 2 3/4 inches to 3 1/2 inches. However, with practice it can be attached to cups larger and smaller than this suggested range.
It is always best to use cups that have a snug fit into one of the rings or steps on the underside of the lid. Runsip® Flex can be attached to cups that are too big to fit into the largest ring or step but the seal may not be as good.
- How do I clean a Runsip® Flex lid?
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It can be cleaned in a dishwasher or boiled in water. If you drink a lot of coffee through it, boiling it every once in a while is a good practice.
- Are Runsip® Flex lids patented?
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Yes, the first of the US and foreign patents have issued. More information can be found here.
- Where are Runsip® Flex lids made?
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Runsip® Flex lids and it packaging are made in the United States of America.
- What is a Runsip® Flex lid made of?
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Your Runsip® Flex lid is made from a material that is approved for use in infant pacifiers. Accordingly, it is BPA Free, dishwasher safe, microwave, boil safe and is FDA food grade.
- Do Runsip® Flex lids come in any colors other than blue?
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Not currently, but limited releases of other colors are in the works.
- Can I drink hot or warm liquids through a Runsip® Flex lid?
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Yes, please do. Using a Runsip® Flex lid is a great way to keep your coffee or tea hot...and in your cup/mug