My sister made a red circle cape for my then two year old daughter with red flannel along with a matching liripipe hood. It is adorable but was a bit dangerous as a tripping hazard until she grew a little taller. You definitely need ground clearance. I then made my husband a circle cloak (75percEnt of one) out of denim we dyed green and lined with flannel. It was really meant to be a costume but even though that much denim weighs like ten pounds it was surprisingly comfortable flipped back in the heat of summer and surprisingly warm in winter (-20 brutal Minnesota winter mind you). I often borrowed it to do the chicken chores. If you take one side and drape it across and over the opposite shoulder one arm can move a bit and it's so much faster than putting on a coat. I think I have less of a wind problem partially because the design shifted the neck hole back into the circle so that it wants to lie closed and the heavy fabric. It would take an awful lot of wind to even make it flutter. Also attached hoods can work they just need to be very deep and use stiff or weighty fabric. I think they're a great run out for a minute garment, but but maybe not for using two arms for long periods of time one.
