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Sea To Summit Spark SPI Down Sleeping Bag

$419.99 NZD $599.99

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The Sea To Summit Spark SPI Down Sleeping Bag is a ultralight, mummy-shaped sleeping bag designed for weight-conscious outdoor enthusiasts. It features premium 850+ fill power down insulation and a Pertex Quantum shell, offering exceptional warmth and durability. The vertical baffle system prevents cold spots, and a full-length zipper provides easy access and ventilation. This sleeping bag excels in cold conditions, compresses to a compact size, and includes a hood and collar for added warmth. It's the ideal choice for backpackers, mountaineers, and thru-hikers who demand high-performance gear without excess weight.


  • Ultralight design for minimal weight in your backpack
  • Premium 850+ fill power down insulation for exceptional warmth
  • Mummy shape for efficient heat retention
  • Pertex Quantum shell for durability, wind resistance, and breathability
  • Vertical baffle system to prevent cold spots
  • Full-length zipper for easy access and ventilation
  • Compact and packable for convenient storage
  • Ideal for cold-weather camping and mountaineering
  • Insulated hood and collar for added warmth

Technical Specifications
  • Temperature Rating: Designed for cold-weather use
  • Insulation Type: 850+ fill power down
  • Shell Material: Pertex Quantum
  • Shape: Mummy
  • Zipper: Full-length
  • Weight: Varies by size (typically under 2 pounds)
  • Packed Size: Compact
  • Hood and Collar: Insulated
  • Fill Weight: Varies by size (typically around 12-16 ounces)
  • Length: Available in various lengths to accommodate different body sizes
  • Dimensions: Vary by size
  • Compression Sack: Included for convenient storage
  • Recommended Use: Backpacking, mountaineering, and thru-hiking in cold conditions

Customer reviews

Customer reviews

Shoes arrived in record time, 100% recyclable packaging with a lovely personalised note. Came across this shop by chance but very glad I did and highly reccommend for online orders.
— Damon

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