See my expired eBay listing for details; it is a roll-up style, with a velcro sticky to hold it rolled up. I paid $30 for it, and it is a perfect fit for my 2009 Aveo5 LT. It is in good shape; about 18 months old. The replacement one I ordered is an accordian-style that I paid $50 for, and the box said 2004-2011 Aveo all, but look at the eBay listing for measurements.
Covercraft Flex-Shade G64001.
If interested, PM me and I can re-list it.