Well see! I can't stand chaps. I find that they are intolerable in hot weather, and they really seem to limit my motion and feel like a trip hazard. I've never been cut on the legs/feet, so I'd really feel like it had been a waste of time in over 35 years of chainsaw use.
That being said, many of the chainsaw injuries I have had to pay for with worker's comp insurance would have been eliminated had they been wearing some chaps. I'm not against them, I just don't feel much benefit. Some folks should never pick up a saw without their chaps, and I'd extend that to
all newbies.
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Curious observation: many years ago, I had a splendid pair of Little Wonder hedge trimmers. Despite my warnings in advance, almost everyone I sent out for more than a couple of hours with that tool came back with a cut on their thigh.
It seems that their forearm muscles just weren't well adapted to that particular load for long periods of stress. Fatigue would set in, and the trimmers began drooping during idle moments until sure enough! Another damned worker's comp claim with the hedge trimmers. When I bought a different pair that had the feel and balance of a chainsaw, that problem went away.
I don't doubt that many chainsaw injuries to the thigh or knees might be related to the same sort of fatigue. Chaps do offer excellent protection, too.