Why it is included
The product listing notes: FULLY COVERED, LEAKPROOF STRAW: The Era Flip series features our patented SlideSeal technology, delivering a 100% leakproof seal while keeping your straw completely shielded from the elements. This feature may be useful for insulated water bottle use; long-term durability has not been independently tested.
Listed features guide this comparison; longevity depends on use and maintenance.
