Sea To Summit Spark SpIII - Sleeping bag Long - Left Zip

Ultra-Light And Technical, Our Spark™ Series Bags Are Designed To Keep You As Warm As Possible While Minimising Packed Weight And Size.The Spark™ Series Spans Everything From An Ultralight Liner To An Expedition Weight Mid-Winter Bag. While The End Usage Is Very Different, They Reflect A Design Ethos Of Matching Weather Conditions To The Lightest Bag Possible.The Secret To The Impressive Performance Is A Combination Of Premium Materials And Careful Design. The Rds 850+ Loft Premium Goose Down, Light-Gauge #3 Ykk Zip And High Performance 10d Nylon Shell And 7d Lining Fabrics, Set The Stage For Superior Performance. These Materials Are Combined With A Contoured Mummy Design For Efficient Insulation, And That Mummy Design Is Then Tweaked For Each Model To Best Fit The Use Scenario.Our Ultra-Dry Down™ Water-Repellent Treatment Protects The Down From External Moisture And Condensation From The Inside Of The Bag, Virtually Eliminating The Negative Effects Moisture Has On Down. All Sea To Sum