Thanks SirMike that's what I'm looking for. The rims I have are vintage Dunlops but seem to run small and are straight sides. So the Schwallabes night do the trickI haven't tried all the different 590 tires out there, but I noticed the creme-colored Schwalbe Delta Cruisers were always tighter fitting than the Kenda or Panaracer tires I've used. I actually found them too tight - really hard to mount and remove on the Sun CR-18 rims I was using at the time. My experience at least.
Ordered the Delta Cruisers from Bike wagon. they came today and fit tight thanks 3-speeder and SirMike---samI like the Schwalbe Delta Cruisers. I've used a few pair of these ones with K-guard:
Bike wagon has treated me well when ordering from them. Just know that these tires have a larger girth and may need a slightly greater clearance. On my Raleighs I've had to spread out the front of the fender a bit to accommodate these tires. I really like them though.