Title: Pretty good, but not indestructable
Review: I will say this for these Contigo mugs - they will not spill until you break the lid (or accidentally push the button). I have never accidentally pushed the button, but the lids do not stand up to repeated (30+) impacts on concrete or asphalt. I have a tendency to carry these things by the lid and they frequently slip out of my hand. Of course, they're not designed for impact resistance, so I can't say that I fault Contigo for this.Pretty good mug if you're not a spaz or carrying them over concrete.
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