Had on a pair of Stihl chaps last year while cleaning up from the hurricane. Made the notch cut, came around to make the felling cut and as the tree started to go I stepped back and my heel hooked on a root, and down I went. I had cleared the area, but just missed that root, and the bar came across my left knee. This was a MS 361 with full chisel chain, and it was just coasting down when it got me. I felt a bee sting on my kneecap, and when I looked about 6" of the chaps were wrapped up in the saw. All I ended up with was a scratch. I have no doubt that I would have been severly injured if I didn't have them on. Stihl chaps are available in 5 and 9 ply, and in wrap or open back for the legs. They can be hot and are a hassle to wear, but you can bet i wear then every time a crank a saw. I also wear a helmut with facesheild, so I don't get hit on my bare head with a widow maker, or so the saw has something to hit first in case of a kickback. BTW, chaps do not provide much protection for electric saws.