Lumia 640 XL Case, CoverON [Slim Guard Series] Slim Dual Layer Armor Hard Cover Thin TPU Phone Case For Microsoft Lumia 640 XL - Teal & Black CoverON [Slim Guard Series] hybrid armor phone case for the Microsoft Lumia 640 XL Upgraded durable semi-hard semi-flexible TPU rubber inner layer Protective hard polycarbonate outer layer Slim fit and lightweight; modern design 90 Day warranty Included