This range of premium down filled sleeping bags are designed to maximise quality, comfort and durability on the mountain. The insulation, construction and shaping of the bag are all created to ensure minimum heat loss therefore keeping you as warm as possible in extreme temperatures. This mountain sleeping bag offers 5 season protection, comfort and warmth and will perform in temperatures of minus 15. The design of the sleeping bag ensures that a minimal amount of body warmth is lost as the design, construction and insulation filling all ensures that your body heat is used to keep you warm. The Viper 1000 is an extremely specialist mountain sleeping bag that will not let you down when the elements are against you.

• Updated styling for 2010
• Omega shaping
• ATC – Advanced Trapezoid Construction
• 90/10 580+ fill power down
• Thermal Embrace System
• Differential fill
• Polair® RSN shell
• Polair® RSN lining
• Profiled 4-panel 3D hood with insulated face baffle
• Multi-cord hood closure
• Insulated shoulder & zip baffle
• 2-way, autolock zip
• Zip guard
• Arrow foot
• Internal pocket with velcro closure
• Supplied with 4 strap compression sac
• Temperature ratings independently measured in accordance with EN 13537:2002