If you're looking for a stylish chair cover, this may not be what you're looking for. Quite frankly, these covers look somewhat like a garbage bag.  However, if you are looking for a good inexpensive cover this is the cover for you. 
 
These covers are custom made out of a very heavy 3 mil UV treated poly vinyl.  These covers are BIG! They will fit on a chair that has a circumference of up to 94 inches. If you have stack-able chairs this cover will probably work for you as well.

The package comes with 4 covers. There are also Velcro tabs that can be used to draw in the sides of the covers for a tighter fit.