Sea to Summit Spark Ultralight -18°C Sleeping Bag Size:Regular and minerals whilst emphasising high-quality

and minerals whilst emphasising high-quality fats and limiting carbohydrates

With its structured

the lightweight construction feels worn rather than carried and offers multiple storage options

Its magnesium alloy construction ensures durability without the weight

Blade length - 75 mm and 90 mm

Sea to Summit Spark Ultralight -18°C Sleeping Bag Size:Regular and minerals whilst emphasising high-qualityIf you're counting grams, but still count on a great night's sleep, the Spark may be the right bag for you. Filled with RDS certified 850+ fillpower goose down treated with a non PFC Ultra Dry Down treatment, the Spark is constructed with a technical hood and zipper draft tube to retain warmth. Comfort comes from a super breathable 10 denier liner fabric, while a 10D shell with a non PFC DWR plus a highly water repellent hood and footbox fabric shed