Impact protection remains my main concern. Leather, Kevlar®, Knox®, etc., and padding mainly assists in mitigating abrasion-related injury. Our heads, necks and spines are podium candidates for life-changing impact-related injury, though. We all wear helmets, some use back-protectors (possibly even without knowing it), but very few consider and protect the neck.
Do we have anyone with neck-brace experience - either tried it, used it, plusses/deltas? Like I mentioned in the opening post, I am considering getting one for my pillion (my wife), but nobody seems to use them. Perhaps a pronounced back protector instead - so that the helmet can butt against that upon neck-whipping impact. But you can hardly use that with a pillion backrest.