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Load image into Gallery viewer, Spark III
Load image into Gallery viewer, Spark III
Load image into Gallery viewer, Spark III
Load image into Gallery viewer, Spark III

Spark III

Regular price $799.00
Sale price $799.00 Regular price
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This is a pre order item. We will ship it when it comes in stock.

A game changer for modern alpine climbing or fast and light hiking, running or adventure travel. No need to contemplate cutting weight by sharing a sleeping bag with your climbing partner who hasn't showered in a week, the Sea to Summit Spark series of bags are contenders for the best warmth to weight ratio of bags on the planet and specifically target those people who need to shed every gram and would possibly consider not taking a bag at all. The Spark III is the warmest of the Spark series and has a comfort rating down to -4C all for a total weight of 625grams and a packaged size that will always fit in your rucksack.

Because the bag is quite slim cut, it can also double as the world's best liner bag to boost another sleeping bag for extreme cold conditions.

Sea To Summit Spark III Sleeping Bag Features

  • Contoured mummy shape
  • 1/3 length side zip which saves weight and boosts warmth (this does mean however that it cannot be opened up like a blanket)
  • 10D Pertex Quantum shell
  • 850+ European Goose down with DWR (Durable Water Repellent) Treatment
  • Fill weight of 400g for Regular
  • Box wall baffled construction


    Read our staff review > 

    EN13537 Rating: Comfort upper 2C, Comfor Lower -4C, Extreme -20C
    Shell: 10D Pertex Quantum
    Down: ULTRA-DRY Down™ 850+ Loft 90/10 European Goose Down
    Down Distribution: 55/45 (top/bottom)
    Packed Volume: 3.7L


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