Heat rankings are a information, not a rule. The diploma listed on a sleeping bag is a measure of a bag’s consolation zone.
So usually, a 20-degree bag will preserve the typical person snug at 20 levels. The NEMO Riff stands out as an awesome choice, boasting zippered gills that may be opened because the person turns into too heat.
Many baggage, just like the Kelty Cosmic 20, characteristic twin zippers. The permits the underside of the zipper to be opened as a vent whereas a lot of the bag stays zipped shut.
In the event you run chilly, a 20-degree bag could really feel too chilly in 30 levels. In the event you run sizzling, you may get away with a 30-degree bag in 15-degree climate or under. Take into account this and possibly you must get a winter bag for a summer season journey or vice versa.