I think your footbox looks nicer and is probably better for warmer weather - not really that often that you would need both down jacket and vest. if it is that cold (unless totally unexpected) you would probably want a warmer quilt anyway. Yet having options is nice. May still try your version because then my daughter could use the current footbox as a quilt if she comes along. Hmm...
Looks good, some many uses for these jackets at that price
"I love not man the less, but Nature more."
I think you should change the project name to "the green lobster"