Thinking of making a sleeve for my iPad, what fabric should I use?

I just pre-ordered my iPad and I want to make a sleeve to protect it. I want to make it a cloth sleeve with a small pocket on the front. I’m basing my design off of this

I want a fabric that will protect the device, keep clean relatively well, and hold together with extended use. But I’ve only worked with fabric in home ec classes so I don’t know what to pick. What can you suggest?