The System shown for Aconcagua is based on the Hispar 500 sleeping bag and Hispar clothing. The clothing offers -30°C daytime performance and the System is rated for -35°C at night.
|The Hispar 500 sleeping bag and the Hispar jacket are both high mountain lightweights that make a great team for peaks around 7000m like Aconcagua. The jacket is rated at -30°C (-22°F) for your ascent. Wear it inside the wide-cut bag at night (along with the trousers and socks) and you'll boost the bag rating all the way to -35°C.|