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Sea to Summit Spark Down Sleeping Bag - SPI Long

Sea to Summit Spark Down Sleeping Bag - SPI Long

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Product details

A truly ultralight, warm-weather sleeping bag, the Spark™ 1 weighs just 12oz in a regular (13.6 oz in a long) and packs incredibly small, making it a top choice for backpackers, climbers, bike packers, and other adventurers who want to carry as little weight as possible. It’s best used in mild temperatures ranging from 40°F to 60°F, and is insulated with premium 850-fill water-repelling Ultra-Dry Down™.

Key Features:

  • Truly Ultralight – The lightest sleeping bag in Sea to Summit’s Spark™ Series, the Spark 1 has a thermally-efficient, space-saving design and sewn-through construction, with a streamlined mummy fit and a 1/3 length zipper.

  • Extremely Compressible – It packs down to the size of a liter of water and comes with a lightweight Ultra-Sil™ Nano compression bag and storage cell.

  • 850+ Fill Power – The high-loft down insulation is made for summer camping in temperatures above 40°F and fends off external moisture and internal condensation with its water-repelling Ultra-Dry Down finish.

Fill type
Is ultralight
Temperature rating
40° F
Water Resistant
Sea to Summit Spark Down Sleeping Bag - SPI Long
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Top reviews
Would an expert recommend this for you?
Gregg Mason
Gregg Mason
Verified camping & hiking expert
Reviewed Jul 13, 2022

12 ounce overall weight for fast and light adventures where every ounce counts. Compresses to 1.5L volume. Super premium.