https://www.amazon.com/gp/product/B00MJXK8VM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

It's $11 and its fits perfectly (i have the original shield tablet).

Doesn't overheat, and has protected it a few times. The only slight drawback is that when you use the stand, its not at a great angle. But for $11 i have no complaints at all.