I broke it.
I dropped the lid (and cup) about 3 ft onto tile in the kitchen. One of the little studs of the hinge broke off. Seemed like a freak accident - especially when i noted on the replacement lid that it was supposed to be indestructible.
I do love the cup - fits in any cupholder and insulates well. It will take a while to get used to making sure the lid is vented in order to push it down to seal the cup, but it is a great feature that it won't spill or at least seals really tight.True confession - I would never have considered it had it not been half-priced on sale (retail $30, paid 15). I actually like it as much or better than my Corkcicle. You have a great product!
Thank you for the review! Glad to hear you enjoy Pirani better than your other tumblers. :) Sorry to hear that your lid had an issue. May we ask you to send a photo to firstname.lastname@example.org so we can see if this is one of our older lids? Have you tried to pop the flip back into place? Let us know so we can assist!