i remember reading that mountain lions (same as cougars?) always attack from behind and go for the neck.
i was thinking of inventing a steel neck protector, but it might get kind of hot and uncomfortable for long hikes.
and for grizzlies, we could invent a cross between a shark cage and an air bag: when the sensor noticed a grizzly attacking the solitary hiker, a collapsible steel grizzly cage would fly out of a back pack and encase the victim-to-be, thus protecting the individual from the bear.
or, maybe i should just stay on long island and watch the nature channel.
Keep workin' the problem Inspector Gadget ;~D
Obviously, you haven't seen what a Grizzly can do to an automobile, cabin door or wall, locked metal food coolers and outdoor freezer cabinets.....
Any protective "cage" strong enough to protect you from a Grizzly, would be too heavy to carry....
Better to avoid all together. Forget trying to outrun.....not possible over any kind of terrain..
Semper Fi