We have only included one sleep system for racing in the extreme cold, choosing the Yukon Arctic Ultra as an example of a race when competitors have to transport their own sleeping gear and deal with extreme conditions day and night.
|Carry the minimum weight and bulk on your race along with the confidence that this system will provide the warmth you need. The Yukon Jacket is a proven performer for low temperature racing. Then at night wearing your down clothing inside the Hispar 600 moves the performance rating right down to -36°C. Yet the Hispar bag weighs nearly 500g less than a standard lightweight bag rated to -36°C and packs down to about two-thirds the volume. The Hispar 600K version has even more impressive stats.|