Hi Anna,
Thank you for reaching out and sharing this concern with us! We are sorry to hear that you are having trouble drinking from your 18oz Travel Mug. Please fill out a warranty claim so that my team and I can assist however possible. A link to this can be found at the bottom of any of our webpages under the Support column.
If this is a lid flow concern, to help with this, we’ve made the slider removable for easy and thorough cleaning.
We encourage you to check out our Care Instructions video, which demonstrates how to remove the slider for cleaning. A link to this can also be found under the Support column. After each use, especially with thicker drinks like smoothies or darker beverages like coffee, we recommend rinsing or washing the lids right away. This simple step can make a big difference in maintaining their quality.
Best,
The Swig Life Team