HFinn, depending on which Effile you are thinking about. The 8 has a short blade (3 1/8 inch) and stiff. The No. 10 blade is longer (4 inches) and a little more flexible. The No. 15 blade is the longest I have at 5 3/4 inches and about the same as the 10 for flex. These are the only sizes I have in Effiles.
Olive or ebony. I could make a pocket sheath to carry a nr 8-10 regular and the 10 slim. Ebony nr 8 and slim 10 would make a nice pair.I agree with the 10 Effile.
Lost mine while jogging.Apparently I planted my #5 Openiel somewhere. Still looking.