I have purchased a few sets like that on ebay. I prefer the coarser (heavier) silk weave ones, as they don't seem to wear as easily from contact with the metal adjusting clip.I recently noticed a few listings on ebay, (they are over now) but the item description listed the suspenders as being silk with leather. I think I should have bid on them now, but was not sure if they would be O.K. or not?
I have some "no-names" as well as a couple of Trafalgar brand. The Trafalgar's are definitely better, and with patience you can still get them at a good price.