"There is not much to say about the Cache because the design is so simple, and I'm using the word "simple" in a good way. The Apple Wireless Keyboard is a snug but easy fit in the case, which is tapered to follow the wedge shape of the keyboard. You insert the keyboard so that the battery side of the keyboard is near the flap, although you can use it either with the keys on the bottom or the keys on the top. The Cache is padded so the keyboard is protected from anything scraping against it or yanking off one of the keys. There is a flap on the Cache that can be tucked into the opening to keep it closed."
Read the full review at iPhone J.D.