Safety harnesses you mention in 3 are also often for fall prevention* not fall protection. Fall protection harnesses aren't much better but typically will at l

Safety harnesses you mention in 3 are also often for fall prevention* not fall protection. Fall protection harnesses aren't much better but typically will at least have padded leg loops. *: Prevention: when tied in you can't make it to a place you can fall such as a system that prevents you from getting within a few feet of a roof Edit: the link you provide seems to be a lightweight fall protection harness and certainly one I'd like using as I prefer a lighter harness when working at height because it means less fatigue and less chance of a mistake leading to a fall.