A foot box is an enclosed section to put your feet into...
Take a look at a mummy bag: most have the last foot or so completely enclosed (the zipper doesn't go down that far)
You wear a top quilt like a blanket, but you don't have to tuck it around your feet as your feet slide into the "footbox"
thank new to this but idid say a lot of dumb questions. but that is what i thought but had to ask.
Steve D. Spent my first night hanging last night and used the fleece TQ I made. Started out with just the inner TQ. Added the outer around daybreak. Temps in the low to mid 50's. After adding the outer just snuggled in until 8 am. Very comfortable. I had stowed/folded the outer up in the foot of the hammock and when needed I pulled it down over the inner. In hindsight, instead of cutting the 90" width into 2 45" halves, I would cut 2 50"x90". Working on a pillow with the leftovers.
Most of us end up poorer here but richer for being here. Olddog, Fulltime hammocker, 365 nights a year.