You will need:
Material - I chose this fabric because it was lying around, and is quite thick, making it suitable for the task at hand.
Scissors - the sharper the better
Thread - preferably of a similar colour to your material
Sewing Machine - you could probably do all of this by hand but i'm lazy.
Laptop - for measuring, and for using with the sleeve after construction.
Pen - preferably something that will wash off, i didnt have this so used a marker that was handy.