When I bought my bike it came with two helments, one full face and one half helment. The full face was to small for me but the full face fit my wife perfectly. The half helment I could wear but my buddy next door said full face to protect that chin, being I'm new to cruising he gave me some advice, Bugs, sting, rocks hurt, pavement makes you ugly! My next door neighbor had a extra large full face and told me to give it a try. Fit perfectly and he said to use it until I found one that I really liked and to save up and get one that fits me. So I have been using it. This morning I took a short ride down through the country, cool air, slight breeze, fall colors, Was a nice ride. I had to get on the big slab coming home. My neighbor has been on me about wearing gloves. I really don't like wearing them but for some odd reason this morning I dressed all out for the ride, Boots, gloves, full face helment, and my leather jacket. As I was coming home a truck slung something from under the tire, I presume it was a piece of tire rubber. Long story short, it pegged me, Got my little finger and ring finger, bounced up and hit my neck and chin. It didn't appear to be very big, **** happens, I rode on home. Got home parked the bike and started taking off my gear, To a HUGE surprise. Both fingers are cut and swollen, a nice cherry on my neck down to my shoulder, but the biggy was, whatever hit me ripped the side vent off the helment and put a good size cut in the paint job and cut the trim on the face seal. If I hadn't been wearing it I think I would have come home with a slightly different look when I looked in the mirror. Glad I was wearing gloves as well, close examination I see it caught part of my hand grip and clutch lever. Again, not bad but I see enough to open my eyes to why I SHOULD wear all my safety gear all the time. It might be a requirment to wear a helment, thank goodness for a friend he pushed the issue of the importance of boots and gloves!