Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2

Aegismax G Series Down Sleeping Bag — 800FP White Goose Down, 380 g to 1,426 g Fill, Comfort 3°C to −23°C

G3 blue / Lengthen
$749.00 AUD
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Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
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  • Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
  • Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
  • Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
  • Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
  • Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
  • Aegismax G Series Down Sleeping Bag — 800FP White Goose, Horizontal Baffles, G1 / G2
Aegismax G Series Down Sleeping Bag — 800FP White Goose Down, 380 g to 1,426 g Fill, Comfort 3°C to −23°C

Aegismax G Series Down Sleeping Bag 800FP White Goose Down, 380 g to 1,426 g Fill, Comfort 3°C to −23°C

Aegismax's classic mummy in five warmths, from the three-season G1 to the −23°C G5.

$749.00 AUD
Down
380–1,426 g
Fill power
800
Comfort
3 to −23°C
Full specification
Model
Length
  • Free shipping Australia-wide: 1–3 business days to dispatch, then 10–20 business days on the way. Worth the wait, but order a month before your trip. Shipping
  • 30-day returns. We pay the postage if it's faulty or not as described. Returns
  • Every figure on this page is the maker's own, and labelled as such.

The G series is Aegismax's classic mummy: 800 fill-power white goose down in an iFlex 15D DWR ripstop shell, in five warmths. The G1 carries 380 g of down (762 g all up) and the G5 carries 1,426 g (1,832 g all up).

Aegismax rates them from comfort 3°C (G1) through −2°C, −8°C and −12°C to −23°C (G5), and says its ratings follow the EN 13537 method. Regular fits people up to 178 cm and Lengthen up to 190 cm.

One bag, five warmths.

Best for
G1: spring to autumn. G2: frosty nights, and cold sleepers all year. G3 and G4: winter in the high country. G5: snow camping and expeditions.
Think twice if
Regular fits people up to 178 cm (Aegismax's figure), so taller sleepers should take the Lengthen. The G4 and G5 weigh 1.6 to 1.9 kg and pack to 23 cm across: only carry that much bag when the nights call for it.

  • G1 and G2: three seasons to frost

    380 g of down and comfort 3°C in the G1, at 762 g all up. 664 g and comfort −2°C in the G2.

  • G3 to G5: winter and snow

    952 g, 1,236 g and 1,426 g of down, with comfort ratings of −8°C, −12°C and −23°C for the high country in winter and snow camping.

  • A proper hood and draft tube

    A 4-chamber hood, face muffler, draft collar and full-length draft tube keep warm air where it belongs.

Warm enough for your trip?

Plan on the “warm to” figure: the maker's comfort rating or, where their labels are unclear, the safest of their figures. If you sleep cold, or you're not sure, add 5°C. And if you're torn between two bags, take the warmer one: a bag that's too warm, you unzip; one that's too cold, you can't fix at 2 am.

Compare it with every bag we sell
  • G1 Comfortable to about 3°C If you sleep cold, about 8°C
  • G2 Comfortable to about −2°C If you sleep cold, about 3°C
  • G3 Comfortable to about −8°C If you sleep cold, about −3°C
  • G4 Comfortable to about −12°C If you sleep cold, about −7°C
  • G5 Comfortable to about −23°C If you sleep cold, about −18°C

Is it the right bag for your trip?

Pick the coldest night you expect. We'll show every bag and quilt that's warm enough, lightest first, and mark this one if it makes the cut.

How cold will your coldest night be?
  1. Wind Hard Dusk Light Warm to 10°C 190 g A$369
  2. Aegismax AIR-E Warm to 11°C 270 g A$289
  3. Wind Hard Tiny Warm to 7°C 290 g A$399
  4. Wind Hard Dusk Warm to 4°C 325 g A$419
  5. Aegismax Nano 2 Warm to 5°C 350 g A$399
  6. Wind Hard Twilight Warm to 0°C 350 g A$399
  7. Aegismax G1This bag Warm to 3°C 380 g A$429
  8. Wind Hard Dusk II Warm to 1°C 436 g A$459
  9. Aegismax M3 Warm to 0°C 500 g A$539
  10. Aegismax Ultra Future I Warm to 0°C 520 g A$419
  11. Wind Hard Tiny Pro Warm to −2°C 550 g A$409
  12. Aegismax G2This bag Warm to −2°C 664 g A$569
  13. Aegismax Ultra Future II Warm to −10°C 830 g A$549
  14. Aegismax G3This bag Warm to −8°C 952 g A$719
  15. Aegismax G4This bag Warm to −12°C 1,236 g A$859
  16. Aegismax G5This bag Warm to −23°C 1,426 g A$949

bags and quilts are warm enough. They're sorted lightest first, so the top one is the lightest that will do the job.

Read the full guide: trips, safety and what else to pack

  • Plan for the coldest night

    Hills, valleys and inland camps get much colder than the forecast for the nearest town. Check the overnight low for where you'll actually sleep.

  • If in doubt, go warmer

    Being too cold at night isn't just a bad night's sleep. A long, cold night in a bag that's too thin can tip into hypothermia, and there's no fixing it at 2 am.

  • The mat matters as much as the bag

    Down underneath you is crushed flat, so the ground steals your heat. Below freezing, use an insulated mat with an R-value of 4 or more.

  • Help the bag help you

    Change into dry clothes, eat something before bed, and wear a beanie. A bag holds warmth in, but it can't make it.

Which one?

ModelDownWeightComfortLimitPackedPrice
G1 Regular380 g762 g3°C−2°C15 × 28 cmA$429
G1 Lengthen400 g818 g3°C−2°C15 × 28 cmA$439
G2 Regular664 g1,052 g−2°C−8°C18 × 30 cmA$569
G2 Lengthen700 g1,124 g−2°C−8°C18 × 30 cmA$599
G3 Regular952 g1,350 g−8°C−15°C20 × 34 cmA$719
G3 Lengthen1,000 g1,434 g−8°C−15°C20 × 34 cmA$749
G4 Regular1,236 g1,642 g−12°C−20°C23 × 36 cmA$859
G4 Lengthen1,300 g1,742 g−12°C−20°C23 × 36 cmA$899
G5 Regular1,426 g1,832 g−23°C−30°C23 × 40 cmA$949
G5 Lengthen1,500 g1,942 g−23°C−30°C23 × 40 cmA$989

Weights are Aegismax's total weights, with the stuff sack and storage sack. Aegismax's ratings, stated as EN 13537 method.

Where it sits among our 16 bags and quilts, by grams of down

Choose by your coldest night

Highlighted: G1 (380 g), G2 (664 g), G3 (952 g), G4 (1,236 g), G5 (1,426 g). The other marks are the rest of our 16 bags and quilts.

The numbers

Taken from Aegismax's own listing and spec cards for this exact model. Where the maker doesn't publish something, the line is left out rather than guessed.

380 gDown fill
800 FPFill power
762 gTotal weight
Down800 fill-power white goose down (90%)
G1: 380 g (Regular), 400 g (Lengthen)
G2: 664 g, 700 g
G3: 952 g, 1,000 g
G4: 1,236 g, 1,300 g
G5: 1,426 g, 1,500 g
Temperature (maker)G1: comfort 3°C, limit −2°C
G2: comfort −2°C, limit −8°C
G3: comfort −8°C, limit −15°C
G4: comfort −12°C, limit −20°C
G5: comfort −23°C, limit −30°C
FitsRegular: people up to 178 cm
Lengthen: people up to 190 cm
Shell and liningiFlex 15D DWR ripstop nylon; 15D soft-touch nylon lining
ConstructionFull baffle structure, draft collar, 4-chamber hood, face muffler, full draft tube, YKK two-way zip, internal pocket
In the boxStorage sack and compression stuff sack
BrandAegismax

“Warm to” is the figure we plan on: the maker's comfort rating or, where their labels are unclear, the warmest figure they publish. Temperature ratings on this page are Aegismax's figures, stated as rated to the EN 13537 method, we have not seen the lab report. Brands like Sea to Summit pay for an independent EN/ISO 23537 test; these makers don't publish one. So compare on fill weight and fill power first: they're physical quantities. How to read them

Complete your sleep system

A bag is half of a warm night. Here's what else makes it work, and what people usually add.

  • Naturehike Cotton Sleeping Bag Liner — Envelope, Spliceable, 75 × 210 cm or 100 × 210 cm
    Cotton Sleeping Bag Liner

    Keeps a down bag clean, and works on its own in huts and hostels.

  • Naturehike Inflatable Camp Pillow — 44 × 27 cm, 85 g, Flocked Non-Slip
    Inflatable Camp Pillow

    An 85 g pillow that folds flat and stays put on your mat.

  • Naturehike TuYe R8.8 Inflatable Sleeping Mat — R-Value 8.8, 12 cm Thick, Mummy or Rectangular
    TuYe R8.8 Inflatable Sleeping Mat

    Naturehike's warmest TuYe: an R-value of 8.8 (maker's figure) in a 12 cm air mat that packs to bottle size.

  • Aegismax 15D Ultralight Compression Dry Sack — 5 to 30 L, Waterproof, Air-Release Base, 3 Straps
    15D Ultralight Compression Dry Sack

    Squash a down bag or quilt small, and keep it dry in your pack.

A mat rated for the season

The ground takes more heat than the air, and down underneath you is crushed flat. As a rough guide: an R-value of about 2 for summer, 3 to 4 for three seasons, and 5 or more on snow.

A way to keep it dry

Wet down stops insulating. Pack the bag in its compression sack inside a dry bag or pack liner, and air it out when you reach camp.

Questions

Which size should I buy?
As a rule, pick a bag at least 15 cm longer than you are, so your feet don't press into the down and make a cold spot. The spec table above gives the length, or the height the maker says it fits. If you're between sizes, or like to sleep with a water bottle or clothes inside, go up.
Are the temperature ratings lab-tested?
No. Every rating on this site is the maker's own figure. Aegismax says it rates to the EN 13537 method, but we haven't seen a lab report. That's why we list fill weight and fill power first: they're physical quantities you can compare between brands. Treat any temperature as a starting point and allow a margin, especially if you sleep cold.
Comfort, limit, extreme: which one do I use?
Comfort is the temperature a cold sleeper stays comfortable at; limit is where a warm sleeper, curled up, still sleeps. Extreme is survival only: never plan on it. Most people should plan on the comfort figure, and on a warmer mat than they think they need.
How do I store and wash a down bag?
Store it loose in its storage sack, not squashed in the compression sack. Wash it rarely, with a down-specific wash on a gentle cycle in a front loader, then tumble dry on low with two clean tennis balls until no clumps are left. It can take a few hours. A liner means you'll wash the bag far less often.
When will it arrive?
We dispatch in 1–3 business days, then it's 10–20 business days on the way to Australia. There's no warehouse or shopfront in between, which is why it takes longer and costs less. If you have a trip booked, order at least four weeks before you leave. You'll get a tracking number by email when the parcel is scanned. Full details on the Shipping page.
Will my order arrive in one parcel?
Gear from the same maker usually travels together. If your order has gear from more than one maker, it can arrive in two or three parcels, sometimes a few days apart. You'll get an email with a tracking number for every parcel, so you always know what's on the way.
Will I pay duty or GST on delivery?
No. Orders under A$1,000 clear into Australia without additional duty or GST, so there's nothing to pay when your parcel arrives.
What if it isn't right?
You have 30 days from delivery to return it unused and in its packaging. If it's faulty or doesn't match what we published, we pay the return postage and refund in full. See Returns.

Three numbers, in this order

Most listings lead with a temperature and a price. Those are the two least reliable numbers on the page. Read these first.

  1. 1

    Fill weight: grams of down

    How much insulation is actually in the bag. A listing that hides it is hiding the cost of the product. As a rough guide for Australia: 400–500 g is a summer-to-shoulder bag, around 700 g takes you below freezing, and 1,000 g is for snow.

  2. 2

    Fill power: 700, 800, 850

    The quality of the down: how much it lofts per gram. Higher fill power gives the same warmth for less weight and a smaller pack. It doesn't mean warmer on its own: 300 g of 800FP down is still a summer bag.

  3. 3

    Total weight and packed size

    What you actually carry. Compare it with the fill weight: a bag with 700 g of down that weighs 970 g is spending 270 g on fabric and zips, which is about right for a 10D shell.

Temperature ratings come last, and only once you know who measured them. EN/ISO 23537 means an independent lab test. Every rating in this shop is the maker's own: Aegismax says it follows the EN 13537 method, and we haven't seen a lab report. The FAQ has the long version.

More from this shelf

  • Free shipping Australia-wideThe price on the tag is the price you pay. No duty or GST on delivery under A$1,000.
  • Every number publishedFill and weight on every bag, R-value on every mat, packed weight on every tent, and a note wherever the maker's figures are unclear.
  • 30-day returnsUnused and in its packaging. We pay the postage if anything is faulty or not as described.
  • Replies within 24 hoursEmail us Monday to Friday and a person answers, not a bot or a call centre.