Suggestions for a lightweight (folding) 26" x 1.5ish slick tyre?

[Fatal Swan]

I've got a bike with a 26 x 1.5" Schwalbe City Jet slicks on, and while the width is what I need for this bike, the tyres are heavy (I think about 600g each) and feel sluggish on the road despite being fitted on a nice lightweight Roval wheelset. I'm looking to save some weight off the bike anyway, so I'm looking for recommendations for a lighter folding slick tyre around the same width?

 

[doctor-bond]

Was looking at this too: Pasela Protite seems best of the current crop - sub 500, amber wall and if the 700cs I had are anything to go by, roll nicely.

I’m also tempted by Michelin Country rock, which aren’t very light but are very cheap!