Great product! The tumbler has held my ice water cold for up to 48 hours, and even ice cold after a 2 hour stay in the car. Only issue is the straw, after 1 day of use, I noticed a bit of a disconnect between suction, it was more air flow than water flow. I’ve had to adjust the straw multiple times to keep the water flowing. A very, hopefully easy fix, but it would be nice not have that issue.
Have the tumbler love it, but i like the ice flow flip straw better i take it to the gym and that way out closes so it won't spill when someone knocks it over. Definitely recommend