Tech21 is known for its extremely strong phone cases. The Evo Check case lives up to that. This is a back cover that seamlessly fits onto your Apple iPhone X/Xs. The Evo Check case is made of so-called Flexshock. This is a kind of plastic consisting of 3 layers that have been specifically developed to withstand a 3-meter drop. Thought has also been put into convenient cutouts. The camera, buttons, and Lightning port remain accessible.