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Sea to Summit Spark SpIV 5 Sleeping Bag

Click to enlarge image of Sea to Summit Spark SpIV 5 Sleeping Bag
Code: STS-SPARKSP4SB
Our Price: $529.95
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Description

Sea to Summit Spark SpIV 5 Sleeping Bag. The Spark Ultralight Sleeping Bag Series spans everything from an ultralight down-filled liner to a mid-winter fast-and-light sleeping bag. Each model uses premium materials and no-frills design to provide cutting-edge performance for the designed end-use.

Ultralight does not mean ultra-tight: The Spark sleeping bags are snug but still have adequate girth for the performance-oriented backcountry user.

IS THIS DOWN SLEEPING BAG? Suitable for cooler temperatures? Yes. You would want the Spark 5F or possibly the 18F either bag will work in late Fall, the 5F will take you down to winter temperatures when paired with an adequately insulating sleeping mat like the Comfort Light Insulated.

Really suitable as a sleeping bag liner? Yes. You could use the Spark 50F, or even the Spark 40F or 28F to boost the performance of a bag for cold-weather use. Adding one of these to a 20F / -5C bag might make more sense than buying a 0F / -20C bag for only occasional winter use.

Able to be zipped to another sleeping bag? No. Even though the 18F or 5F have full-length side zippers, they are not designed to be coupled to a sleeping bag with a right zipper (for instance the Flame 18F or 5F).

Features
  • Best Use - Ultralight Backpacking, Bike Touring, Liner Bag
  • Performance - Summer or Sleeping Bag Liner: 50F (comfort range 50F to 70F)
  • Warm weather: 40F (comfort range 40 to 60F)
  • 2 Season: 28F (comfort range 28F to 60F)
  • 2.5 Season: 18F (comfort range 18F to 55F)
  • 3.5 Season: 5F (comfort range 5F to 50F)
  • ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS) 10D shell and 7D liner materials help to achieve the incredible lightweight and compact packed size
  • Includes lightweight Ultra-Sil compression bag and storage cell
  • Zipper-length trimmed for gram-saving performance: 50F, 40F, and 28F have 1/3-length zippers | 18F and 5F have full-length side zippers
  • Baffle construction: 50F and 40F have sewn-through construction. | 28F has baffles in the torso and sewn through in the leg area. | 18F and 5F are fully baffled.
  • COMES WITH: Ultra-Sil compression bag and storage cell
Specifications
  • BAG SERIES: Spark 4
  • BAG WEIGHT: Regular - 1lb 15oz / 880g | Long - 2lbs 2.7oz / 985g
  • COMPRESSED VOLUME: 6.6L
  • COMPRESSION SACK: S - 10L to 3.3L
  • FILL WEIGHT: Regular - 21.9 oz / 620g | Long - 24.7oz / 700g
  • FITS UP TO: Regular - 6 ft / 183 cm | Long - 6 ft 4 in / 192 cm
  • SEASON RATING: 3.5 Season
  • TEMPERATURE (EN RATING): Comfort range 5F to 50F
  • WOMEN'S TEMP (EN RATING): 18F (Comfort)
  • SHELL FABRIC: Ultralight 10D Nylon Shell
  • INSULATION: Ultra-Dry Down 850+ Loft
  • ZIP OPTIONS: Left-side #3 YKK zipper

 

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