Sea to Summit Spark SP I Regular Ultralight Down Sleeping Bag

Sea to Summit Spark SP I Regular Ultralight Down Sleeping Bag

When your lightweight journey requires a high-performance sleeping bag, the Spark™ series sleeping bags are your ideal choice.

Sea to Summit Spark Sp I Down Sleeping Bag is a true minimalist bag that uses the lightest materials and highest quality, responsibly sourced down to deliver an exceptionally high warmth to weight ratio, when compared to other similarly rated bags.

The Spark I bag features vertical baffles on the chest area to minimise movement of down, optimising insulation where you need it most. The half zip saves weight and reduces heat loss at the expense of venting if conditions are too warm.

The contoured mummy shape isn't too constrictive and the super thin and light outer fabrics means more care will be needed than with more heavy duty bags. The bag compresses down to a very small size.

• Utilizes lightweight 7D and 10D fabrics with a mummy design to enhance warmth while minimizing weight and packed size.
• Specifically designed lightweight stuff sack for an even smaller packed size.
• Features high-quality RDS 850+ fill power water-repellent goose down, providing exceptionally superior warmth.
• The body-hugging mummy shape provides efficient warmth.
• The vertical baffles above the chest prevent down from shifting and creating cold spots
• Vertical compartments in the chest area reinforce the down position, preventing down from shifting due to body movement, and preventing down from being squeezed and transferred to other parts, reducing warmth.
• Note: This sleeping bag cannot be combined with other sleeping bags.

• Material:
• Insulation : RDS 850+ Loft Premium Goose ULTRA-DRY Down
• Shell: Ultralight 10D Nylon Shell
• Zipper: Left-side #3 YKK zipper
• Comes with: Ultra-Sil™ compression bag and storage cell
• Weight: 342g (excludes storage bags)
• Dimensions (In Use): 183cm × 39cm × 37cm
• Packed Size: 11cm (diameter) × 16cm

• EN13537:2012 Comfort: 9°C/48°F
• EN13537:2012 Comfort Limit: 5°C/41°F
• EN13537:2012 Extreme: -9°C/15°F
• Performance: Warm Weather