Newt Hybrid 50f
The Newt Hybrid 50f is a super ultralight, trimmed down even more, sewn through version of the Newt Hybrid. Like the Newt Hybrid, it is a hybrid system between my false bottom design and a traditional quilt. It has a false bottom up to about the hip area to keep the edges under control and the drafts out. The top third of the system is open like a quilt so the user can ventilate of cinch down. This combination is an attempt at joining the benefits of each system into one. The draft free and warmth of the false bottom design and the easy ventilation and open feeling of traditional quilts. It's also meant to improve upon the drawbacks of each. The lack of ventilation options of the false bottom for warm sleepers and the drafty nature of quilts for colder sleepers.
There is an extra side benefit to the design as well. My false bottom designs are slightly limited in that the top circumference has to be large enough for the user's shoulders to fit through. The Newt hybrid is open at the top, like a quilt. This makes it possible to shave a little weight by making the top a little narrower, since it's generally weight in girth that is just gathered by a drawcord. I find that it's very reasonable to get away with 5" - 8" under your shoulder circumference without making it too narrow for your shoulder girth when snapped closed.
The Newt Hybrid 50f is a bit more trimmed down with no pad strap and no top drawcord. It's further aimed at minimalism, which is reasonable for a higher temperature rated system that is going to mainly be used in summer (or warm periods). The pad strap can be ditched since the user's hips keep the Newt in place. The top drawcord can be ditched since we aren't dealing with cold temperatures. If it gets cool, the top can simply be tucked around the user's neck like a blanket.
It's filled with 950 fill power down
This should be used with a Waterbear balaclava or can be used with other types of head insulation.
Read up on the design features:
http://www.timmermade.com/false-bottom-sleep-system.html
http://www.timmermade.com/differential-cut.html
http://www.timmermade.com/horizontal-baffles.html
http://www.timmermade.com/non-integrated-hood-sleep-systems.html
http://www.timmermade.com/overstuff.html
http://www.timmermade.com/sizing-sleep-systems.html
Approximate weights are calculated below.
Any dimensions, within reason can be built as a custom request emailed to timmermade@gmail.com