Sea to Summit Spark -1C Ultralight Down Sleeping Bag

£382.50 £425.00

Size

Engineered to keep you warm at the lightest weight and smallest compressed size.

BEST USE: Ultralight adventures

PERFORMANCE: Small pack size

WEIGHT: 510 g

The Spark Ultralight Mummy Sleeping Bag Series spans everything from an ultralight down-filled liner, to a mid-winter fast-and-light sleeping bag. Each model uses premium materials and no-frills design to provide cutting-edge performance.

Ultralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.

  • Features

    850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions
    10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.
    Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.
    Spark 7C/45F & 1C/30F Primary zip - 1/2 length #5 with zip-plow and two sliders. Spark -9C/15F & -18C/0F Primary zip - 3/4 length #5 with zip-plow and two sliders.
    Vertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C & -18C box wall baffle construction throughout.
    Spark 7C, -1C & -9C Standard front draft collar. SPARK -18C Double draft collars
    Spark 7 & -1 can't be paired. Spark -9 & -18: Pairs with Women's Sea to Summit bags.
    QuiltLock System integrates with StS quilts

  • Specifications

    BEST USE
    Ultralight Backpacking
    COMES WITH
    Ultra-Sil compression bag and storage cell
    INSULATION
    Ultra-Dry Goose Down 850+ Loft
    MATERIAL(S)
    10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.
    SHAPE
    Mummy Fit: Fitted cut with generous footbox and technical hood

    Regular
    Weight - 510g

    Compression Sack - 8L

    Fill Weight - 265g

    Fits up to Height - 185cm

    Season Rating - 2.5 Seasons

    Temperature Rating (EN Lower Limit) -1ºC

    Long
    Weight - 536g

    Compression Sack - 8L

    Fill Weight - 305g

    Fits up to Height - 198cm

    Season Rating - 2.5 Seasons

    Temperature Rating (EN Lower Limit) -1ºC