Sea to summit offers three variations in the spark series.
Sea to summit spark sp iii review.
It was awarded our prestigious gear of the year award for 2013.
The sea to summit spark iii is incredibly lightweight and one of the most compact sleeping bags in our review.
Last season we put the sea to summit xt2 3d down sleeping bag through the preverbal bsc review ringer and it came out the other side with flying colours.
Each utilizes their ultra drydown 850 loft goose down and are all targeted towards cycling touring ultra light hiking adventure racing and bikepacking.
It sports the tightest dimensions among bags we tested and only a 1 3 length 3 ykk zipper that was both the shortest and the smallest zipper of any bag we in our review.
It does give up some luxury and versatility in order to achieve its amazingly low weight and minimal size.
This time we have the newly released sea to summit spark spiii sleeping bag up for review.
Sea to summit spark sp ii sleeping bag review august 10 2018 justin lightcap the sea to summit spark ii is a mummy style sleeping bag that s designed for the minimalist backpacker who wants to be light and fast on the trail.
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.
Starting with the warmest and heaviest the sp iii has a fill weight of 400g and a comfort rating of 25f 4c.
The spark series spans everything from an ultralight liner to an expedition weight mid winter bag.