It might also be a good idea to include a hard hat (or maybe a bicycle helmet if that would work better for the user). They're somewhat bulky to carry and annoying to wear though, so I find that I carry/wear them probably less than I should.
i met a grizzled Scout leader this weekend that wears a hard hat everytime he goes off-roading. he says it's too versatile to leave at home - protection from sun, protection from BANGs (said he started using it after banging his head on his portaging trip), collecting water, gathering edibles, campfire chair...