Hey all, looking for some thoughts/suggestions regarding bike covers. I commute to work in New Orleans, so rain is almost always a daily threat even on blue sky days and the humidity is a seemingly constant 95%.

A post on this site (or somewhere similar) suggested this Nashbar product: Nashbar Bicycle Cover

The description says: "Made from water resistant PVC Nylon for weather protection" which makes me wonder if it's not waterproof (it rains hard enough that any cover will eventually get overwhelmed if not waterproof).

Then there's this selection on Amazon: http://www.amazon.com/s/ref=nb_sb_no...bicycle+covers

(note: I have a preference towards Amazon because I have a Prime membership, so I'd most likely get something in one or two days)

My question is: are any of these notably better than others? Am I definitely getting a better product (for something so simple) if I spend $20-$25 instead of $10-$15? Am I better off just going to Lowes and picking up a tarp?

Thanks!