I'm still not sure what Non Newtonian physics means, but it was wise of Tech 21 to ship me a gooey sample of the material used in their cool 'Band’ case so I could see and feel how different it is. It's not rubber and it's certainly not plastic, but it's a strong, protective grippy substance that feels very comfortable in your hand. And it looks snazzy, too, in the clear + orange model that I tried, as well as the many other variations on their website.
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