On Fri, 02 Aug 2019 15:21:48 -0700, Tom Kunich wrote:

I just got an advertisement from Trek in which they now claim that the
latest Wavecell has not 28 times but 48 times the protection for your
head than normal foam.

The question to ask yourself is "where is the point of failure now".

When mushroom style bicycle helmets, aka bell, first came out, there was
a nasty rise in a spine based injury of a rather severe and fatal type.