I've got 28C Vittoria Randonneurs on my bike - but they're super narrow as 28s go. I can't even use a 28C tube in them - I use a 23/25 tube and it fits perfectly. They're much narrower than the Kenda Kwests I used to have on the bike, even though those were also 28C.

Good tires - highly recommended. Extremely durable (not a single puncture since I started using them), and they also roll pretty darned well.