Soft Hackle Flys? What are they?

FYI,
Dan Cone used the term “Soft Hackle Fly” the other day when Jeff and I ran into him at Rio Raft and asked what the trout were hitting that day. He also used it in his most recent news letter update. We weren’t sure what exactly that referred to or if it was a particular fly (we’re still newbie’s you know). We knew what a hackle was and wondered if the term “soft hackle” was something different or unique to some types of flies. So I googled it and this is what came up. Anyway, attached is an article explaining the origin of the term “soft hackle”, what it is, and how it is used.

http://www.jackgartside.com/step_soft_hackle_flies.htm
The Soft-Hackle Wet Fly—Back to Basics