Depends on how much of your head/ face you value.
I like a flip up full face helmet and I am on my third one in two years first I struck a large raccoon at night and went down with a broken shoulder scapula and ribs one of which punctured a lung, the Dr. told me I was the first live person he had seen with similar injuries and was I wearing a helmet? The next helmet was used up nearly a year later while cruising thru Arkansas an Elk met me while I was traveling 65 during the afternoon.
I woke up 11 days later in little rock after having two life flights and two hospitals and dying twice with a mangled spleen and a torn aorta (the bitch broke my heart)! and broken collar bone broken scapula and ribs and wrist lots of road rash.. anyhow the helmet worked again and I am now wearing a new flip face. They work! And by the way armor jackets might help some but?
quick reply I am sure that P.E.T.A. is looking for me..