Hood and shoulders: A couple of companies make hood-and-shoulder ponchos. They often have a pack cover so that they can be flipped on or off, as required. It is a great idea for some conditions. I would like a quick-to-attach “front” for when the rain becomes heavy.
Why so long and wide? I would say that most ponchos are NOT long. Most are about parka length, like upper thighs. That allows the wearer to choose appropriate bottoms for conditions and preference. Width, yes, may be for shelter options.
OneWind has an extended length poncho with an interesting design. It is a box shaped poncho-tarp, but it also has sleeves.
There is further room for improvement. Maybe a narrow body, longer sleeves, and a detachable front, with the pack cover for easy deployment while walking?


