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7 people found this helpful
How to convert a three season sleeping bag into a four season
on 18 October 2011
I've just come back from an adventure holiday in Peru, which is mostly a warm country, so I had with me a Gelert 3 season sleeping bag, which was plenty warm enough most of the time. However I spent a night camping at 3600 metre above sea level and that was quite a bit chiller (about 2 degrees without wind chill). With my sleeping bag fleece liner, I was toasty warm. The bag cocooned around my body and face nicely, which kept the air warm around my face. I was warm as soon as I climbed into the bag, and stayed very snuggly all night. I was, I suspect, warmer than my wife, who was in a 4 season bag.