The Smart Cover is great for protecting the iPad 2’s screen, but it leaves the aluminum back vulnerable. HyperShop has a series of TPU (thermoplastic polyurethane) back covers that protect the parts left uncovered by the Smart Cover. The HyperShield Back Cover is only 1.4mm thick, and it protects the iPad 2 against scratches and shocks. It’s available in 10 colors that match all the polyurethane and the leather Smart Covers and in clear to let the beauty of the iPad’s design shine through. The HyperShields are available now for $19.95.