I use Panaracer Pacela 700-35 on my two primary commuter bikes. Some tire manufacturers don't accurately mark their tire widths. Panaracer was guilty of this up until a few years ago. What they formerly sold as a 35mm tire was closer to 32mm, and so on down the sizes. Now when you buy a recent vintage of Panaracer 700-35 you get a nice fat round tire, a true 35mm.