The Hyperion 32F/0C sleeping bag is among the lightest in its class while still providing high-performance during backcountry pursuits. The bag uses thermally-efficient box baffled construction in key areas to ensure warmth and comfort in an ultralight package. Designed with high-quality materials and Therm-a-Rest performance features, the Hyperion keeps your pack featherweight without sacrificing an ounce of performance. Storage sack and compression stuff sack included

• Ultralight: One of the lightest pieces in its class, the Hyperion sets a new standard for high-performance outdoor equipment.
• 900-fill 

  Nikwax® Hydrophobic Down

  Boasting unrivaled temperature regulation, it dries three times faster, absorbs 90% less water and maintains loft 60 times longer than untreated down.

  " data-original-title="Nikwax Hydrophobic Down™">Nikwax Hydrophobic Down^™ : Stays drier and maintains loft 60 times longer than untreated down.
• Unrivaled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before.
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  Box Baffled Construction

  To maximize thermal efficiency in key areas, we use mesh box baffles to boost loft and eliminate cold spots at the seams of the sleeping bag or quilt.

  " data-original-title="Box Baffled Construction">Box Baffled Construction: Uses mesh walls to maximize loft and minimize cold spots in key areas.
• Comfort Fit: Ergonomic shape and longer zipper provide a more human-friendly fit than other ultralight bags.
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  SynergyLink™ Connectors

  These removable straps integrate your mattress and sleeping bag to minimize heat loss and keep you secure through the night.

  " data-original-title="SynergyLink™ Connectors">SynergyLink^™ Connectors: Integrate the bag with a mattress for optimal efficiency and comfort; removable for versatility.
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  Zoned Insulation

  Intentionally placed insulation puts fill exactly where you need it, maximizing thermal properties while reducing weight.

  " data-original-title=" Zoned Insulation">Zoned Insulation: Maximizes warmth and saves weight by intentionally placing fill where you need it most, 70% on the top and sides with 30% on the back.
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  Responsible Down Standard

  All of our down is certified to the Responsible Down Standard so that you can sleep easy knowing that the waterfowl have been treated humanely.

  " data-original-title=" Responsible Down Standard Certified">Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely.