Is there a lace up style footbox?
I keep coming close to having an idea, but then not quite.
When you cinch the bottom to make the foot box you have a couple feet of shockcord dangling around.
If you sewed small loops onto each edge of the TQ every 2 - 4" for a total of 18-20", then you could thread the dangling shock cord thru the loops and tie the end off or maybe even attach it with a mitten hook. If you placed the loops a little in from the edge, then there would even be some overlap to keep drafts out.
Has anyone done something like this?