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Sea To Summit Spark SP1 Reg L Zip UD (Sliver)


The Spark I is the lightest and most compact sleeping bag we make. It's an excellent summer bag whether you're ultra-light through hiking or cycle touring. It also works well as a booster bag, slipping inside another sleeping bag to add warmth.


  • Size Variation: Regular / Left Zip
  • Compressed Size: 1.55 liter
  • Fill Weight: 6.3 oz/180g
  • Bag Weight: 12.3 oz/348g
  • Temp Rating: 46 F (EN Lower Limit) /8 C (EN Lower Limit)
  • Recommended Use: Backpacking, Camping, Flying, Cycle Touring

Product Details:

  • Shell: 10D UL Nylon treated with DWR
  • Liner: 15D nylon soft touch, high density weave
  • 850+ loft Ultra-Dry Down® (90/10 European goose down)
  • 1/3 length #3 YKK zipper
  • Sew-through transverse baffle construction
  • Includes lightweight Ultra-Sil® compression bag, mesh storage cell and laundry bag

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