For sale is this Griffin AirStrap protective case for your iPad. I barely used this but it's been in storage for several years. This is compatible with the 1st Gen iPad but may fit others. I paid $20 for this back in the day.

Product description

A molded frame with thick, comfortable, contoured grips surrounds your iPad 1, protecting the edges without getting in the way of your controls or ports. Slip your hand under the wide neoprene strap on the back. AirStrap hugs your hand, making your iPad easier to hold whether you're reading in a coffee shop or checking out the headlines as you ride the 6:45 in to work.