Spark Ultralight 18F Sleeping Bag
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Spark Ultralight 18F Sleeping Bag
Tech Specs

Specifications are maintained on Pack4Back GearDB (community edits and revision history). Values may differ from the manufacturer or your unit—verify before buying.

Best UseBackpacking
Tested Lower Limit18 degrees (F) - EN
Tested Comfort29 degrees (F) - EN
Temperature Rating (F)18 degrees (F)
Temperature Rating (C)-8 degrees (C)
WeightRegular: 1 lb. 8 oz.
UltralightYes
Shell10-denier nylon
Zipper LocationLeft
Insulation TypeDown
Water-Resistant DownYes
FillUltra-dry down
Fill WeightRegular: 14.4 oz.
Lining7-denier nylon
Sleeping Bag ShapeMummy
Fits Up To (in.)Regular: 72 inches
Shoulder Girth (in.)Regular: 61 inches
Hip Girth (in.)Regular: 53 inches
Stuff Sack Size6 x 14 inches
Stuff Sack Volume6 liters
Compressed VolumeRegular: 4.6 liters
GenderUnisex
Description

Designed for late spring to early fall use, the Sea to Summit Spark Ultralight 18F sleeping bag is a lightweight pick for ounce-counting backpackers. It serves up easy ventilation and cozy comfort.

Features
  • 850-fill-power down provides cozy warmth
  • Baffles in the torso area keep insulation in place; sewn-through construction in the leg area helps keep this bag lightweight
  • 10-denier shell and 7-denier liner materials deliver an impressively light weight and compact packed size
  • Full-length side zipper with 2 sliders offers easy ventilation options
  • Includes lightweight Ultra-Sil™ compression bag and storage cell