Push the boundaries of alpine exploration with The Spark -18. Designed for the elite minimalist who demands maximum thermal efficiency with minimum bulk, this bag represents the pinnacle of ultralight engineering. Utilizing ultra-fine technical textiles and high-loft hydrophobic insulation, it provides a formidable barrier against freezing temperatures while remaining light enough for high-velocity mountain pursuits.
Thermal Engineering & Materials ↓
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High-Loft Insulation: Filled with premium ethically sourced down, treated for superior moisture resistance to maintain thermal integrity in damp environments.
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Ultralight Shell: Crafted from 10D and 7D technical nylon fabrics — so fine they allow the insulation to reach its maximum loft instantly.
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Vertical Chest Baffles: Specialized internal architecture prevents down migration during movement, keeping warmth centered at your core.
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Temperature Rating: Laboratory-certified for extreme conditions down to -18°C (0°F).
Dimensions & Technical Metrics ↓
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Optimized Weight: A masterclass in weight reduction, engineered to vanish into your pack without sacrificing survival-grade warmth.
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Contoured Silhouette: A technical mummy fit designed to eliminate dead air space and maximize thermal efficiency.
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Compressibility: Designed to compress to the size of a small water bottle, making it the ideal choice for minimalist expeditions.
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Zipper System: Features a high-reliability side zipper with an integrated draft tube to prevent heat loss.
Logistics & Protection ↓
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Hydrophobic Finish: A specialized coating on the down prevents the absorption of sweat and condensation, keeping you dry and warm.
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Adjustable Hood: 3D-shaped hood that can be cinched tight to retain heat in the most extreme alpine bivouacs.
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Maintenance: Best maintained with technical down washes; use a low-heat tumble dry with clean tennis balls to restore its extreme loft.
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Colorway: A sophisticated Grey exterior with technical Yellow accents for visibility.
The Presentation ↓
The Spark -18 is delivered in our premium technical packaging, reflecting the elite engineering of your new expedition tool.
- The Spark -18 Ultralight Sleeping Bag
- Technical Compression Silnylon Stuff Sack
- Storage Cube for long-term loft preservation
