Criterion In Action
Criterion Sleeping Bags were previously known as Cumulus Sleeping Bags – hence the reference to Cumulus in all expeditions.

Manaslu Expedition 2001 led by Krzysztof Taraszewicz
Shisha Pangma Expeditions
–a) 1999. Expedition led by Waldemar Soroka
b) Winter 2003/04. Expedition led by Jan Szulc
c) Winter 2004/05. Expedition led by Jan Szulc
First ever winter conquest in January 2005!
Criterion equipment has also been used in various, less extreme situations on expeditions in the Pamir, the Andes, Alps and Atlas mountains.
For more pictures from the K2 and Shisha Pangma winter expeditions click on the above links.
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Trekking in extreme conditions.