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  • ASP2-R

    Sea to Summit Spark SpII -2°c Sleeping Bag

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    Availability: In stock. Dispatch: 1-2 working days

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    When you need a high performance sleeping bag but don't want to be weighed down by one, the Sea to Summit Spark Spll -2°c Sleeping Bag is the one to reach for. 

    The ultra-light and technical Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size. A series that spans everything from an ultralight liner to an expedition weight mid-winter bag, the end usage is very different as they reflect a design ethos of matching weather conditions to the lightest bag possible. 

    The secret to the impressive performance is a combination of premium materials and thought out design. The RDS 850+ Loft premium goose down, light-gauge #3 YKK zip and high performance 10D Nylon shell and 7D lining fabrics, set the stage for superior performance. These materials are combined with a contoured mummy design for efficient insulation, which is then tweaked for each model to best fit the use scenario. 

    The Ultra-Dry Down™ water-repellent treatment protects the down from external moisture and condensation from the inside of the bag, virtually eliminating the negative effects moisture has on down.

    All Sea to Summit Down Sleeping Bags use Responsible Down Standard (RDS) certified down. The Ultra-Dry Down™ protection also makes the Spark™ an impressive hard-alpine or adventure racing bag, where every gram is counted and down has never been a viable option. 


    • 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 sewn through horizontal baffle construction to minimise weight
    • ½ zip with two sliders aids access and allows ventilation from mid-section of bag
    • Updated sizing provides extra room for both shoulders and hips while still maintaining insulation efficiency 
    • Draft tube prevents heat loss through the zipper
    • Includes hood draft collar
    • NOTE: This bag is not designed to pair with another


     Gender Unisex
    Insulation Type Down
    Down RDS 90/10 Premium Goose Down
    Fabric 10D Nylon Shell
    Fill Power Ultra-Dry Down® 850+ Loft
    Fill Weight Regular: 300g, Long: 345g
    Shape Contoured Mummy
    Temp Rating EN  4°c Comfort to -2°c Lower
    Weight Regular: 490g, Long: 560g


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