I have a WW2 French Model 1926 with a brand new replacement liner I bought from a seller in France, and it's very comfortable, it's almost like wearing a hat, the M26 is an improvement of the early WW1 M1915 has a stronger shell with better quality steel and the liner design feels more comfortable with the spring tension.
I wore it for an a couple hours just to break it in and get the "feel" of it for evaluation