Rectangle

They offer high thermal performance thanks to their narrow design, which reduces air gaps and heat loss. They are lighter than rectangular ones due to the use of less material. Recommended for hiking, mountaineering, or extreme temperatures.

The comfort temperature is the lowest ambient temperature at which an average woman can sleep comfortably for 8 hours.

The warmth of a sleeping bag is determined by the fill density inside it, which is measured in grams per square meter (GSM).

300

Suitable for spring, summer, autumn