What an amazing product. My girlfriend uses this Every. Single. Day.
I gave it to her as a Christmas gift and she kind of brushed it off. A koozie.yay. But my goodness its hands down the gift she uses the most. She uses this mainly to keep her Dunkin ice coffees cool. She gets her coffee at 8am, and when she comes home at 6pm there is still ice in her coffee.
This is strong, durable. Obviously made of good material.
She used to use styrofoam cups or home made koozies. But this one is the end all be all.
It also comes with a rubber attachment so it hold medium or large ice coffees comfortably.