AEGIS M3 Ultralight Mummy Goose Down Sleeping Bag


AEGISMAX’s adaptable AEGIS-M3 series of down sleeping bags can be fully prepared for sleep in high altitude and cold environments.

Lightweight, warm, comfortable, and the most important thing is  strong adaptability. Our AEGIS-M3 series sleeping bags provide a perfect balance between comfort and weight. The fully enclosed mummy style has a more space-saving storage design, which is convenient and fast to provide you with the sleeping experience you need while exploring.



AEGIS’s most classic 3D full enveloping head and 3D down zipper windproof wall seamlessly combine a complete set of three-dimensional down down windproof and thermal insulation system, which represents the highest level of AEGIS down sleeping bag structural design.

  • 3D full enveloping head design
  • 3D zipper windproof side wall design
  • 3D arched foot storage design
  • Fully-stand lined down warehouse design
  • High cleanliness 800FP white duck down filling
  • Comply with EN 13537 temperature scale system
  • Full-size YKK 5# rail head can be spliced with two-color zipper
  • iFlex 15D ultralight DWR nylon fabric
  • iFlex 15D ultralight special lining fabric
  • LOA selected UTX DURAFLEX buckles
  • Contains a storage bag and a compression bag

Sleeping Bag Parameters Table

Recommended user height (CM) 176 196
Sleeping bag size(CM) 190 X 78 210 X 82
Compression bag size (CM) 15×35 18×40
After compression size(CM) 15×25 18×25
Filling weight (G) 500 550
Sleeping bag weight(G) 840 920

                                        Total weight (G)

880 966
Chest Inner circumference(CM) 154 162


The EN13537 is a European standard for sleeping bags that provides three temperature levels to help guide you when choosing a bag.

COMFORT (Comfort Temperature): Measured under a standard test environment for standard healthy women in a relaxed state, they will not feel cold (shaking all over), and they will keep their body comfortable throughout the night.
LIMIT (Limited Temperature): Measured under a standard test environment for a standard healthy man curled up in a sleeping bag, his body did not tremble, and he could keep his body comfortable throughout the night.
EXTREME (Extreme Temperature): Measured under a standard test environment for standard healthy women, who are attacked by severe cold weather (shaking all over). At this time, there is a threat of hypothermia or even death. The limit temperature belongs to the theoretical range and is only regarded as a dangerous critical point that is difficult to reach.