Spiral Down Hugger #3, regular with 5" 11" model.
The bag features the Spiral Stretch System which by integrating a woven
fabric “cut on the bias” and orienting the fabric’s warp
and weft threads at 45 degrees to major seam lines the sleeping bag becomes
more fluid or elastic in nature, resulting in a flexible bag.
Two-way zipper can be opened from the bottom to
provide ventilation. Auto Locking Zipper has been integrated to limit zipper “slip” during
the night.
Regular sized Spiral Down Hugger #3 in included
stuff sack which measures 5.3" x 10". Pictured with a gallon
jug filled to 1.0" which weighs the same as the bag in it's stuff
sack
UL Spiral Down Hugger #3, 2011
Spiral Stretch System (PAT.Pending)
Box Construction:
Eliminates cold spots resulting from sewn-through seams and
allows down to loft completely.
Neck Adjuster: a drawstring adjusts
fit around neck
Draft Tube: a single draft tube prevents air
from circulating through the zipper
Auto Locking Zipper: a
locking mechanism has been integrated to limit zipper “slip” during
the night.
Tapered Stuff Sack: A tapered opening and "bias cut" fabric
are utilized to facilitate easier packing.