Sea to Summit Spark Ultralight Down Sleeping Bag 40-Degree Long
Sea to Summit Spark Ultralight Down Sleeping Bag 40-Degree Long
- nylon - 40-degree Fahrenheit (5-degree Celsius) ultralight down sleeping bag for warm weather backpacking, bike packing, and touring - 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; one-third length, left-side YKK zipper - Contoured mummy shape provides adequate room for a natural sleeping position; sewn-through construction - Long size bag has a max user height of six feet six inches; bag weighs 13.6 ounces; compresses to 2.2 liters with included Ultra-Sil compression sack
Product description
FIVE VERSIONS FOR PERFORMANCE IN ANY SEASON
Warmth & Durability
To Equip and Inspire
More at hips and knees for various sleeping positions
Zipper-length trimmed for gram-saving performance. Left-side #3 YKK zipper.
Includes lightweight Ultra-Sil compression bag and storage cell
Best used for Ultralight Backpacking.
The highest-lofting down used in any of Sea to Summit’s sleeping bags. 850+ Fill Power indicates that one ounce (30g) of down will re-expand to over 850 cubic inches after compression
All Sea to Summit sleeping bags use only down which is certified according to the Responsible Down Standard. The RDS is helping shift the entire down and feather industry towards more humane animal rearing and handling practices.
Despite being incredibly lightweight, the 10 Denier UL Nylon is down-proof and surprisingly durable. A DWR finish helps to shed external moisture. This fabric is part of the secret to making the Spark and Flame Down Sleeping Bag Series some of the lightest, most packable sleeping bags available today.
The Sea to Summit started in 1983 in Perth, Western Australia by keen climber and adventurer, Roland Tyson. Decades later, Sea to Summit continues to be a company driven by design perfectionism that allows us to develop ingenious, functionally beautiful products.