I used to ride Vittoria Randonneur Cross tires. They come in a 35c which my guess is the size you'd want. Low rolling resistance (even lower than the Vittoria Randonneur Pro which I tried as well) on road and slight tread for off. Even did my first century on them. Never had a flat in several thousand miles of riding.
Ideally with you may want to think about a bit wider tire if you can fit one on the bike.
If you can wait a few weeks the new Schwalbe Little Big Ben might work well. There are few reviews as it's new and back ordered right now. Rivendell has a review
here. Picture
here.
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Last edited by stevel610; 05-11-13 at 07:12 PM.