Title: This has a major flaw for kids! The flip lid breaks easily!
Review: We have had three of these. Two of them have had their flip lids snapped and cracked when my son or daughter dropped them--and kids drop things! The lid is just a very brittle plastic and with a hinge that makes it very vulnerable in a fall. I've temporarily fixed them with superglue but it eventually cracks again. While thermos makes great adult products, a heavy stainless steel can is a lot for a kid. So otherwise its a beautiful mug, but gets very expensive as it breaks and drops. Thermos need to modify this and avoid a design with this brittle flip lid.
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