The minimum temperatures quoted are for cold spells or storms in the spring and autumn. Much of the time it can be warmer than this, even more so in the summer. The cold weather is usually accompanied by high winds, making windchill a serious factor.
Wind chill rating: High
Travel in this part of the Arctic includes ski (+ sled), kiting, and dogsledding, for journeys of all lengths and with varying degrees of support (if any). Weight is very important for self-powered expeditions, a little less critical for kiters and dogsledders.
Those participating in races to these destinations will have their own parameters for choosing gear. If you are in need of something particularly suited to your venture, please get in touch and discuss it with us.
Extra length is advised on bags for storing vital items at night.