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Sea to Summit Spark SP II


Sea to Summit Spark SP II

ULTRA-DRY Down protection and warmth in a minimalist package.

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The opinion of Aventure Nordique

Using 850+ loft goose down treated with the amazing moisture repelling ULTRA-DRY Down, a micro-weight 7D shell and 10D lining, the Spark is one of the best warmth for weight minimalist sleeping bags available.


  • 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

  • Vertical box baffles in the torso area accommodates extra down and boosts warmth around the core, vertical baffles on chest optimises positions of down to prevent it moving during use

  • Lower part of the bag uses a sewn through horizontal baffle construction to minimise weight

  • ½ zip with two sliders aids access and allows ventilation from mid-section of bag

  • Draft tube prevents heat loss through the zipper

  • Includes hood draft collar

  • Includes lightweight Ultra-Sil Nano compression bag for compact storage

Technical details

Manufacturer Sea to Summit
Product name Spark SP II
Article number DSBSP2
Season 3 season
Model Unisex
Fill Goose Down
Cuin 850
Comfort rating 4°C
Comfort Limit -2°C
Extreme rating -18°C
Dimensions M : up to 183 cm - L : up to 198 cm
Shoulders - Hips - Feet: M : 150/130/88 cm - L : 158/138/94 cm
Outer shell Nylon 7 deniers
Inner lining Nylon 10 deniers
Fill Weights M : 300 g - L : 345 g
Weight M : 490 g - L : 560 g
Zipper Left
Colour Gray


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