I have decided I want to use momentum 0.9 oz taffeta for the shell and 3.2 oz combat climasheild to build an overbag/ summer quilt.
I am 6'-3"
I am a little confused about how big to make the shoulder area.
I want to make it narrower at the foot with a drawstring. IE no sewn in foot box.
My mummy bag dimensions are…
(outside)
From the head opening to the footbox – 6'3"
Width at Shoulder – 2'8"
Footbox – 12"x12" with rounded corners.
I am thinking the overbag needs to be 7' long for the drawsting footbox. That gives me 9" to wrap around the footbox.
The width of the foot area that I think will work is 3'8"
The shoulder area is where I am wondering.
I laid out a cross section in autocad and came up with a general number of 3'8" wide at the shoulder if I just want it to drape to the ground.
That would make it a rectangular quilt at 3'8" x 7'-0"
As an overbag, if I want it to tuck under 4" on each side it will need to be 4'4" at the shoulder. Total weight would be 15.9 oz.
Really would like it at 14 oz, but its still not too bad.
I guess I could always use this just as an overbag for my 3 pound synthetic mummy which would put my total winter bag/system weight at 4# which is okay.
If I used it only as an overbag in winter I could just sew in a footbox which would save an ounce or so.
I could also just make a dedicated summer quilt only and make it super light like maybe 10-12 oz and save some weight in the summer.
Any comments welcome.
