High-level thermal protection for winter
The Aegismax G3 -10 degree sleeping bag is essential safety equipment for demanding winter nights. When the cold sets in for the long haul, the quality of insulation determines the success of the outing. This extreme cold sleeping bag uses premium goose down to build an impassable barrier between your metabolic heat and the freezing outside air, ensuring the interior warms up quickly.
Heat retention and thermal envelope
The internal baffle construction ensures an even distribution of the RDS-certified 800-fill power down, eliminating cold spots. The 15D IFlex® nylon shell is highly water-repellent, protecting the down from condensation on tent walls. Despite its high-performance thermal insulation, it compresses down to 4.5 liters, fitting easily into a mountaineering pack.
Full-baffle structure against cold spots
The internal construction relies on continuous transverse baffles that partition the RDS-certified down across the entire width of the bag. At a comfort rating of -8°C, this uniform distribution of the fill is crucial for this extreme cold weather sleeping bag: localized compression is enough to create a cold spot that can compromise a night in winter conditions.
Technical components: YKK zippers and Duraflex buckles
The zipper uses a 5 Nylon YKK zip and the adjustment buckles are Duraflex, two components recognized in outdoor equipment for their durability. The snag-free PAIHO velcro protects the outer fabric from gradual damage during repeated handling of this winter sleeping bag.
For larger builds or adventurers looking for a technical design incorporating cross-channels to further stabilize the down down to -10°C, the Aegismax Ultra Future II expedition model will be the ultimate upgrade for your gear.
Doubt about which bag is right for you?
The field guide helps you choose based on skill level, temperature, needs, and weight. Support answers specific questions.
Find my bag Contact supportFrequently Asked Questions
The Aegismax G3 has a comfort temperature of -8°C and a lower limit temperature of -15°C, measured to the EN 13537 standard. These values apply under standard conditions: sleeper in thermal base layers, on an insulated sleeping mat. It is designed for winter bivouac, mountaineering use (4 seasons).
The Aegismax G3 is filled with 800 fill power, RDS certified. The Aegismax G3 weighs 1350 g, which places it in the standard category.