I just put Vittoria Voyager Hyper tires on my commuter. I'm not sure what technology they use, but there is puncture protection. I have ridden Paselas (non-tourguard) a lot, and I didn't mind the fact that I would get a flat occasionally. Now I'm expect the frequency to go down. And these tires ride great. Actually, they feel normal, but my speedometer says I'm going faster. They look like monstrously heavy slow tires, but they don't feel like that.