Hi, I'm looking for a back cover for my iPad to go with my Smart Cover. I'm having a hard time finding one I like, and was wondering if there was any specific brand that anyone would like to recommend? Here's what I'm looking for: -Clear back cover (so I can see my engraving) -Thin -Doesn't curve around to the front of the iPad along the edges and corners. -Doesn't discolor over time. Thanks for any help in advance!