I own a few covercraft items for my S5 and they are durable. I'm not sure about the sun shade. It's heavy gauge anti reflection material and insulation form a great barrier, but the stitching between the panels does not work well. I find myself having to delicately unfurl and mount it in the window. Once on the window it's great. But every time I mount or remove the shade I feel like the panels are going to separate. It gets an A for concept but C- on execution.