Sea To Summit Spark Spii 28 Sleeping Bag

You could use the spark 50 f or even the spark 40 f or 28 f to boost the performance of a bag for cold weather use.

Sea to summit spark spii 28 sleeping bag.

The highest lofting down used in any of sea to summit s sleeping bags. Available at rei 100 satisfaction guaranteed. Higher loft means that less down can be used to achieve the same temperature rating important for performance sleeping bags. When the sea to summit spark spii sleeping bag large size is compressed down it s not much bigger than a 1 liter 32 ounce water bottle.

The spark ii bag features vertical box baffles on the chest area to minimise movement of down optimising insulation where you need it most with. The loft and down quality composition are independently tested by the international down and feather laboratory idfl a copy of the certification is supplied with every sea to summit sleeping bag. Sea to summit s spark spii down sleeping bag is a true minimalist bag that uses the lightest materials and highest quality responsibly sourced down to deliver an exceptionally high warmth to weight ratio when compared to other similarly rated bags. The liner has a plush feel on the skin and the down insulation gives it a comfortable feel.

Adding one of these to a 20 f 5 c bag might make more sense than buying a 0 f 20 c bag for only occasional winter use. There is a lot to like about the sea to summit spark spii 28 its 850 fill power goose down a total weight barely over a pound and an absolutely miniscule packed volume there is also plenty to dislike about the spark ii. Our testers particularly detest its narrow dimensions and a zipper that constantly snags. Spark spii 2 c zoom.