The Spark Men's sleeping bag provides extremely low weight for demanding trips where every gram counts. The ergonomic mummy shape optimises comfort and heat retention. 850+ fill power goose down provides a next level warmth-to-weigh ratio, making this bag the ideal companion, wherever you're going. Features RDS-certified, 850+ fillpower goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance in damp conditions. Ultralight, breathable 10D nylon liner and a 10D shell with PFC-free DWR makes the hood and footbox highly water resistant. Technical hood, anatomical footbox and an ergonomic mummy shape - ultralight doesn't have to mean ultratight. YKK #5 zippers with zipper plow provide reliable, snag-free operation. Baffle construction specific for each use: Sewn through for lighter weight (7°), Hybrid box baffles in torso/sewn through in leg area (-1°) or full box baffles for maximum warmth (-9° and -18°). Sea to Summit Guarantee is offered for the Lifetime of this product. Specifications Spark 7° Regular Spark 7° Long Spark -1° Regular Spark -1° Long Spark -9° Regular Spark -9° Long Spark -9° Double Spark -18° Regular Spark -18° Long Max User Height 185cm 198cm 185cm 198cm 185cm 198cm 198cm 185cm 198cm Weight 363g 387g 493g 536g 730g 786g 1543g 1113g 1204g Fill Weight 150g 172g 265g 305g 480g 540g 985g 840g 945g Compressed Volume 2.4L 2.9L 4.5L 5.1L 6.8L 7.6L 14.3L 9.9L 10.6L Men's Temperature Rating (ISO Lower Limit) 7° 7° -1° -1° -9° -9° -9° -18° -18° Women's Temperature Rating (ISO Comfort) 11° 11° 4° 4° -2° -2° -2° -10° -10°
