SpiraFil™
Marmot's own unique synthetic insulation
SpiraFil™ is a blend of large, hollow, spiral fibers for loft, and small polyester fibers for warmth, softness, and compressibility. Thermal bonding ensures high tear strength and long-term durability. SpiraFil™ provides an exceptional combination of warmth, softness, low weight, and compactibility.
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30F / -1C$89.00 -
15F / -9C$99.00 -
50F / 10C$70.00 -
40F / 4C$75.00
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30F / -1C$85.00 -
20F / -7C$95.00 -
40F / 4C$65.00 -
50F / 10C$99.00
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40F / 4C$139.00
