Does anyone know how an original LC4 bolster is filled? A foam cylinder?
My current (repro) neck bolster is a 6" leather cylinder. A while back I replaced the foam inside with a foam cylinder "EverFlex™ V10 Medium-Soft foam" which I think is ILD: 10. I also wonder how much different leathers could contribute to stiffness.
Does the original have a foam roll, or a daunen pillow or something else?
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