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Sea to Summit Spark 18-Degree Ultralight Down Sleeping Bag

  • Based on 17 reviews
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Availability: 16 left in stock
Fulfilled by Amazon

Arrives Friday, May 9
Order within 6 hours and 47 minutes
Available payment plans shown during checkout

Style: Long


Features

  • 18-degree Fahrenheit (-8-degree Celsius) ultralight down sleeping bag for 2-season backpacking, bike packing, and touring; technical mummy shape features hood and zipper draft tubes
  • High-loft 850 fill power down insulation (Responsible Down Standard certified) treated with ULTRA-DRY Down to improve reaction to moisture, retaining loft and performance
  • Ultralight, compressible 10D nylon shell with 7D liner fabric for minimal weight and bulk; full-length, left-side YKK zipper
  • Broad mummy shape provides adequate room for a natural sleeping position; baffle construction is fine-tuned to the temperature rating and prevents down fill from shifting
  • Long size bag has a max user height of six feet six inches; bag weighs 1.6 pounds; compresses to 5.4 liters with included Ultra-Sil compression sack

Description

The Sea to Summit Spark 18-Degree Ultralight Down Sleeping Bag is a technical down bag, engineered for warmth at the lightest weight and smallest compressed size. Ideal for backpacking, bike packing, and touring, the mummy style features a shaped hood and zipper draft tubes to keep the cold out and the warmth in. High-loft, 850 fill power down insulation (Responsible Down Standard certified) is treated with proprietary ULTRA-DRY Down to improve reaction to moisture, retaining loft and performance in rugged conditions. The technical mummy shape provides adequate room for a natural sleeping position, while baffle construction is fine-tuned to the temperature rating and prevents down fill from shifting during sleep. The ultralight 10D nylon shell with 7D liner fabric offers cutting-edge packability and warmth. A weight-saving YKK zipper is full-length, on the left side. The Sea to Summit Spark 18-Degree Ultralight Down Sleeping Bag is available in two sizes: Regular (max user height of six feet) and Long (max user height of six feet six inches). Includes Ultra-Sil compression sack and storage cube. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.


Item Package Dimensions L x W x H: ‎16 x 15 x 7.5 inches


Package Weight: ‎0.97 Kilograms


Item Dimensions LxWxH: ‎18.11 x 11.81 x 9.06 inches


Item Weight: ‎0.5 Kilograms


Brand Name: ‎Sea to Summit


Warranty Description: ‎Manufacturer guarantee against defects in materials or workmanship for the lifetime of the product


Manufacturer: ‎Sea to Summit


Part Number: ‎S2132


Model Year: ‎2019


Style: ‎Long


Outer Material: ‎Nylon


Fill Material Type: ‎Down


Size: ‎Regular


Date First Available: April 14, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Light but nice
Style: Regular
I returned for the 8 degree one but it seems like a great quality
Reviewed in the United States on February 11, 2023 by Mike&Jenn

  • Sweaty plastic feel
Style: Regular
The sweatiest sleeping bag on earth. At Temperatures of 10c and I was sweating as if I were in a sauna. It felt as if I were in a polyester plastic bag. Would not recommend this bag even though without doubt it is the lightest and smallest bag available.
Reviewed in the United States on October 29, 2019 by PT

  • Misleading bait and switch
Style: Long
Ordered the 50degree long. they sent a regular from 3 years ago. different specs and color. i wont fit it it. worthless
Reviewed in the United States on October 20, 2019 by 108

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