Lightweight for ultimate performance on those fast and light treks, the Spark SpIII sleeping bag from Sea to Summit is great for use all year round thanks to the 850+ loft premium goose down that locks in heat to keep you warm all night long. The vertical box baffles in the torso area allow for extra down and increases warmth around the core and prevents the down from moving during use. The full side zip with two sliders allows for easy access and extra ventilation for those warmer nights undert the stars, the ULTRA-DRY Down™ protection prevents condensation on the inside of the sleeping bag and protects the down from light showers. The mummy shape increases thermal efficiency and comfort a better nights sleep wherever you are.
- Ultralight 7D and 10D fabrics for minimal weight and packed size
- RDS 850+ Loft Premium Goose ULTRA-DRY Down™ for maximum insulation value
- Contoured mummy shape for comfort and efficient insulation
- Vertical chest baffles prevent down migration and cold spots
- NOTE: This bag is not designed to pair with another
- Uses a full box baffle construction to accommodate extra down and reduce cold spots
- Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
- Vertical baffles on chest optimises positions of down to prevent it moving during use
- Full side zip with two sliders provides easy access and extra ventilation options
- Zipper draft tube, hood and front neck draft collar to prevent warmth being lost when it’s needed
- Temperature rated- -2°C - -26°C