Proporta Leather Style Case - Sony Reader Pocket Edition PRS-350
This cover is a good-quality, no-frills cover.  The finish (stitches, alignment, movement) and the fit are perfect.  If there is one complaint I have, it's the price.  Also check out the [[ASIN:B004B8L1KK igadgitz Black Genuine Napa Leather Book Style Case Cover for Sony Portable Digital eReader PRS-350 Pocket Edition with Viewing Stand]] which is cheaper and has a stand (like a picture frame).  I wanted that one, but it was out of stock.  This one, however, is fine.