Sea to Summit Spark -1C/30F

Sea to Summit Spark -1C/30F

Ultra-lightweight 3-season sleeping bag with excellent weight-to-heat ratio: 4°C comfort temperature for 495 g.

Special Price €379.00

Regular Price: €439.00


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Availability: In stock & Available in our store

The opinion of Aventure Nordique

The Spark -1C/30F is the ultra-light sleeping bag in the Sea To Summit range, offering excellent performance. In Regular size, it is filled with 265 grams of 850 cuin 90/10 European goose down, with Ultra Dry Down treatment for greater resistance in wet conditions. It weighs 495 grams for a comfort temperature of 4°C.

The Mummy Fit cut maximizes thermal efficiency, and for the filling, Sea To Summit has opted for different padding according to the body's essential zones, optimizing insulation:

Vertical padding on the torso to prevent the down from shifting.
Horizontal padding on the bottom to minimize the weight of the sleeping bag.
To achieve such a low weight, the envelope is made of a very fine 10-denier nylon fabric, with H-shaped compartments on the top and through seams on the bottom. The hood and footbox are made of waterproof, breathable fabric.

The Spark -1C/30F sleeping bag has a half-length zipper, equipped with 2 sliders and an anti-cold pad. In addition to the hood, a collar on the front protects against air ingress.

Technical details

Manufacturer Sea to Summit
Product name Spark -1C/30F
Season 3 season
Model Unisex
Fill Goose Down
Cuin 850 cuin+ 90/10 RDS Ultra Dry Down
Comfort rating 4°C
Comfort Limit -1°C
Extreme rating -17°C
Dimensions R : up to 185 cm - L : up to 198 cm
Shoulders - Hips - Feet: R : 155/135/102 cm - L : 165/145/112 cm
Folded size R : 8 L - L : 8 L
Outer shell Nylon 10 D, waterproof (hood and footbox), Bluesign
Inner lining Nylon 10 D, Bluesign
Fill Weights R : 265 g - L : 305 g
Weight R : 493 g - L : 536 g
Zipper Left
Colour Grey / Yellow
Additional information
  • Comes with storage bag and webbed compression cover.
  • Cannot be combined with any other sleeping bag.
Eco-responsible contribution

The Responsible Down Standard (RDS) label guarantees the protection of goose and ducks reared for the production of sleeping bags or down jackets containing feathers and down. The RDS lining means that it does not come from animals that have been subjected to cruel treatment. This label allows traceability to identify the origin of the down.

Bluesign label certification guarantees the production of a safe and sustainable textile with the lowest impact on people and the environment. The Bluesign standard aims at a responsible use of resources and risk management related to the handling of chemicals throughout the production chain. It is an independent label that requires certification.

Warranty 2 years
Country of Manufacture China


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