Much can not be said to be a normal silicone case. It fits and has where needed (eg Silent switch or speaker) corresponding holes. Could be perhaps interesting for people with Smart Cover, that this can be in addition "connected", but the magnet does not seem to be strong enough in the cover, in order to bridge the small distance that results from this envelope to the edge of the iPad, , So you hold the iPad to the head, works on the Smart-Cover. Since I was not disturbing, since I have just a shell used to use the Ipad at parties as a light panel, I am satisfied with this envelope.