The Nashbar $30 shoe covers came in the mail, yesterday. Without too much tugging they covered my low-profile adidas SPD mtb/commuting shoes. There is a good bit of pressure on the zipper, which does not leave me confident in their durability, however, worth the risk for $30. Looks like I will get to test them out on tomorrows commute--forecast in the DC area is calling for rain and highs in the thirties.