The Gruezi Biopod -4C DownWool Subzero 185 is a premium three-season sleeping bag, designed for trekking, biking, backpacking, and camping. Its innovative DownWool filling—a blend of 70% high-quality down and 30% moisture-regulating wool—ensures optimal insulation and climate control, keeping users comfortable even in lower temperature ratings down to -4°C (25°F). The mummy shape enhances warmth while maintaining a lightweight, compressible design. The adjustable hood, collar, and head pillow pocket provide extra comfort, while the two-way, auto-lock, anti-snag zipper with reinforced strap and cover allow for smooth operation and prevent heat loss. Foot ventilation and a spacious footbox ensure airflow when needed, and Feater loops allow compatibility with the Feater heating system. Built with durable, water-repellent, and PFC-free materials, this OEKO-TEX and Responsible Down Standard (RDS)-certified sleeping bag is also machine washable for easy maintenance.

Key Features: 

• Three-season applications: Ideal for use from spring to autumn.
• Lower temperature rating: Comfort rating of 2°C (36°F), limit of -4°C (25°F), and extreme rating of -20°C (-4°F).
• DownWool filling: A blend of 70% high-quality RDS-certified duck down and 30% Alpine wool, ensuring warmth and moisture control.
• Mummy shape: Provides efficient thermal retention while remaining lightweight.
• Head pillow pocket: Allows insertion of a piece of clothing like a fleece jacket for a makeshift non-slip pillow.
• Adjustable hood and collar: Enhances insulation and reduces heat loss.
• Drawstring pocket: Safely stores the collar drawstring to prevent discomfort.
• Smooth-operating zipper: Allows for easy use and reduces heat loss.
  • Two-way auto-lock zipper: Operates from both ends and from inside and outside, and prevents accidental opening.
  • Anti-snag zipper with robust strap: Smooth operation without fabric catching.
  • White zipper: Easy to locate in the dark.
  • Reinforced zipper cover: Reduces heat loss and cold spots.
• Foot ventilation system: Innovative zip that enables heat regulation by allowing feet to be placed on top of the bag.
• Spacious, shaped footbox: Designed with multiple chambers for warmth and comfort.
• Chamber construction: Features H-shaped and V-shaped chambers for optimal down distribution.
• Feater loops: Compatible with the Feater - The Feet Heater (not included) for additional warmth.
• Water-repellent, PFC-free fabric: Uses Bionic Finish Eco PLUS for waterproofing and free of perfluorinated chemicals.
• RDS certified: Ensures humane treatment of ducks and geese as sources of down insulation.
• OEKO-TEX certified: Free from harmful substances for skin safety.
• Machine washable: Allows for easy care and maintenance.

Inclusions:  

• Sleeping bag
• Compression sack
• Storage bag
• Full washing and care instructions

This lightweight, packable, and high-performance sleeping bag is an excellent choice for adventurers seeking warmth, comfort, and versatility in various outdoor conditions.