"Tom Bihn designed the Cache essentially as an envelope for the iPad. It’s built from high quality padded nylon material that provides approximately 6mm of iPad protection. The Apple device slides easily into the Cache and closes with a small flap that tucks into the envelope opening. When we first looked at the Cache, our initial reaction was that the flap would never stay in place given its size and lack of mechanical closure. Well, we were wrong. The closure worked flawlessly in our tests and kept the iPad securely inside."
Read the full review @ GearGuide. See also: the Cache
Vertical Cache, Size iPad, in a Large Cafe Bag.