Sierra Designs Zissou 6-Degree 700 Fill DriDown Sleeping Bag
Cold weather camping has a unique set of challenges, including melting snow and condensation inside your tent. Designed to outperform standard down bags, the award-winning Zissou 6 features 33-ounces of 600-fill DriDown™ insulation to keep your bag insulating better, lofting higher, and drying faster in any winter environment.  Stuff sack and storage sack included.  What is DriDown?  Simply put, DriDown represents the evolution of down insulation.  Regular down is treated with a molecular level polymer to create a hydrophobic finish on each individual down plume.  This finish allows DriDown to stay dry 7-times longer, retain 34% more loft when exposed to moisture and humidity, and dry 33% faster than untreated down, keeping you warmer in any environment. What is EN Testing?  Going forward, Sierra Designs will now utilize the temperature that an average man or woman will sleep comfortably at which is found via EN Testing.  At the most basic level, the EN Test helps us understand how much insulation is required to keep a person warm and comfortable through the night.  Through EN Testing, Sierra Designs will offer authentic construction and efficient functionality to assure an overall comfortable sleep experience.  For the Zissou 6, the average man will be comfortable in this bag down to 6 degrees based on EN Testing.  That can vary from individual to individual; however, this gives you a solid starting point when choosing a bag.