Ignore the dew point readings: Just get out and go with this warm-weather camping essential — replete with synthetic high-loft insulation, ultra-comfortable linings, and a stow-away pillow pocket.
Reg: 6'0" - Left Zip
SprialFil™ is Marmot's own unique synthetic insulation used in our value-priced line of sleeping bags.
What is it? SpiraFil™ is a unique blend of large, spiral hollow fibers for loft, and small polyester fibers for warmth, softness and compressability.