Where can I buy a Runsip® Flex lid?


You can click Purchase Now to buy a Runsip® Flex lid via this website.


If you are a retail buyer please contact us via our Become a Partner form.


How do I use a Runsip® Flex lid?

Our home page shows illustrations and videos that depict each step necessary to best use a Runsip® Flex lid.


What cup size will a Runsip® Flex lid work on?

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?


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.


Where are Runsip® Flex lids made?

Runsip® Flex lids and packaging are made in the United States of America.


What is a Runsip® Flex lid made of?

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. 


Are Runsip® Flex lids patented?


Yes, the first of the US and foreign patents have issued.  More information can be found here.


Do Runsip® Flex lids come in any colors other than blue?

Not currently, but limited releases of other colors are in the works.


Can I drink hot or warm liquids through a Runsip® Flex lid?

Yes, please do.  Using a Runsip® Flex lid is a great way to keep your coffee or tea hot...and in your cup/mug


What is your return policy?


Our return policy is stated within our Terms and Conditions for the Online Sale of Goods agreement that is a part of the purchase process, but is also listed separately below:

Except for any products designated on the Site as non-returnable, we will accept a return of the products for a refund of your purchase price, less the original shipping and handling costs, provided such return is made within 30 days of delivery and provided such products are returned in their original condition. To return products, you must e-mail our Returns Department at returns@runsip.com to obtain a Return Merchandise Authorization ("RMA") number before shipping your product. No returns of any type will be accepted without an RMA number.

You are responsible for all shipping and handling charges on returned items. You bear the risk of loss during shipment.

Refunds are processed within approximately twenty business days of our receipt of your merchandise. Your refund will be credited back to the same payment method used to make the original purchase on the Site. WE OFFER NO REFUNDS ON ANY PRODUCTS DESIGNATED ON THIS SITE AS NON-RETURNABLE.