HyperShield "Glow In The Dark" Soft Back Cover for iPad 2 (Green) We've got your back covered! Protect your iPad 2nd/3rd/4th generation with our TPU "Glow in the Dark" HyperShield Back Covers. Designed to work perfectly with the Apple iPad Smart Cover. Compatibility: iPad 2nd/3rd/4th generation. While the Apple Smart Cover keeps the front of the iPad safe, it does not protect the iPad aluminum back. This is where the HyperShield Glow Soft Back Cover comes in.