AEGISMAX M3 Sleeping Bag
M3 is a mummy sleeping bag with 800FP down, an EN limit of -5 °C and a weight of 840 g. It is made for backpacking and camping; check the EN ratings before choosing.
AEGISMAX M3 Sleeping Bag
Checked 5 November 2026Tax Included
AEGISMAX M3 -5 Degree 800FP Goose Down Sleeping Bag
Product description:
- AEGIS M3 is a classic mummy structure that is compact and warm. The lining structure features warm seams and a zippered wind barrier.
- 800FP white goose down.20DDWR coated nylon fabric,The ultra-dense material effectively prevents down drilling out.
- High-quality YKK spliceable zippers.Bringing your family, loved ones, or friends to camping together will be a great choice.
- Equipped with a pocket, which can be used to store small items such as mobile phones, wallets, keys, etc. At the bottom of the sleeping bag has a hook for easy hanging and drying at any time.
- Free compression bag and loose mesh bag. The compressed volume of the M3 is only 25x18cm. It can save a lot of space for your backpack.
About this item
AEGIS M3 is a relaxed mummy shape provides plenty of room while you sleep. It has perfect blend of insulated warmth, low weight and squash-down compressibility. Stuffed with highly packable, 800-fill responsibly sourced down, it squashes down to fit into a backpack with the help of the compression sack and space-saving 'mummy' shape. Fully lining structure and baffle design reduce cold spots and retain loft and still features our self-sealing foot vent for comfort.
Technical Specs: iFlex®15D DWR Nylon Ripstop Fabrics | 800 Fill Goose Down | IFlex 15D Touch soft Nylon Fabrics | Anti-Snag Zipper Tracks| Draft baffle.
M3-regular: Fill weight:500g | Sleeping bag weight:840g | Total weight:888g | Size:190x78cm | Package:18x25cm | Storage bag and stuff sack included.
M3-lengthen: Fill weight:550g | Sleeping bag weight:920g | Total weight:966g | Size:210x82cm | Package:18x25cm |
Storage bag and stuff sack included.
Temperature Rating: EN Limit-5℃/23° F| EN Comfort 0° C/32° F. As a rule of thumb, the "Limit "rating should be applied for men, and the "Comfort” rating should be applied for women.
- Shell is treated with a durable water repellent (DWR) finish that resists stains and moisture;
- 15-denier pro soft touch lining provide lasting coziness and a super soft feel;
- Lofty 800-fill-power white goose down provides optimal warmth-to-weight ratio and compressibility;
- fully lining structure provides even coverage and minimizes the formation of cold spots;
- Different cut sizes of fabric and lining and three-dimensional sidewalls;
- Face muffler and full draft tube keep cold air out of your bag;
- 60/40 down filling ratio;
- 4-chamber hood design maintains even loft around head for consistent warmth;
- 3D anatomically contoured footbox follows natural foot position for maximum warmth and comfort;
- 2 different hood drawcords allow internal adjustment to avoid heat loss;
- Mid-size internal zipper pocket;
- YKK#5 two-way side zipper;
- Comes with an ultra-light compression bag and a mesh storage bag.
More details:
Compare the range
Compare Aegismax sleeping bags
Buy by EN Comfort rating, not by model name. Compare fill power, weight, comfort and price across the range.
| Model | Fill | Weight | EN Comfort | EN Limit | From |
|---|---|---|---|---|---|
| Nano 2 | 800FP | 664–782 g | +5°C | 0°C | £132.00 |
| G Series | 800FP | 762–818 g | +3°C | -2°C | £145.00 |
| Wind Hard Dusk | 800FP | 390–540 g | +10/+4/+1°C | +5/-2/-4°C | £119.00 |
| Wind Hard Tiny | 800FP | 496 g | +7°C | +2°C | £136.00 |
| Wind Hard Tiny Pro | 800FP | 835 g | -2°C | -8°C | £149.00 |
| Ultra Future | 800FP | 932 g | 0°C | -5°C | £146.00 |
| M3 · current | 800FP | 888 g | 0°C | -5°C | £169.00 |
| Summit | 800FP | 1,006 g | -1°C | -6°C | £189.00 |
| Ultra | 850FP | 1,470 g | -30°C | -38°C | £599.00 |
EN ratings are manufacturer figures. Temperature ratings depend on the sleeping pad, clothing and the sleeper. Check the product page for the exact variant.