Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C

Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C

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$289.00 AUD
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Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
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  • Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
  • Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
  • Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
  • Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
  • Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
  • Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C
Aegismax AIR-E Envelope Down Sleeping Bag — 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C

Aegismax AIR-E Envelope Down Sleeping Bag 800FP Ultra Dry Down, 479 g, Opens Flat, Comfort 11°C

A 479 g summer bag that unzips flat into a down duvet.

$289.00 AUD
Down
270 g
Weight
479 g
Comfort
11°C
Full specification
Size
  • 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 AIR-E is Aegismax's envelope-style down bag that unzips fully to lie flat like a duvet. It holds 270 g of 800 fill-power “Ultra Dry” water-repellent white duck down in a 10D ripstop shell, with a total weight of 479 g in the Regular (maker's figures).

Aegismax rates it comfort 11°C and limit 6°C to the EN method, so it's for warm nights. A two-way YKK side zip opens it flat, and two of the same model zip together. Regular or Lengthen.

One zip turns it from a bag into a quilt.

Best for
Summer hiking, coastal and lowland trips, huts, hostels and van camping, and warm sleepers.
Think twice if
It's a warm-weather bag. Below about 10°C most people will want more down: the Twilight quilt in our range is rated comfort 0°C. There's no hood, so on cooler nights wear a beanie. Opened flat it's a loose duvet: Aegismax doesn't list mat straps for it, so it won't clip to your mat the way the Twilight does.

  • Bag or quilt

    Zip it up as an envelope bag, or open the two-way side zip all the way and use it flat like a duvet.

  • 479 g all up

    270 g of 800FP “Ultra Dry” down in a 10D shell, packing to 23 × 12 cm in the Regular.

  • For warm nights

    Aegismax rates it comfort 11°C and limit 6°C: summer trips, huts and vans, or a top layer over a thinner bag.

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
  • AIR-E Comfortable to about 11°C If you sleep cold, about 16°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-EThis bag 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 G1 Warm to 3°C 380 g A$429
  8. Black Ice E400 Warm to 15°C 400 g A$409
  9. Black Ice G400 Warm to 10°C 400 g A$409
  10. Black Ice Z400 Warm to 5°C 400 g A$459
  11. Wind Hard Dusk II Warm to 1°C 436 g A$459
  12. Aegismax M3 Warm to 0°C 500 g A$539
  13. Aegismax Ultra Future I Warm to 0°C 520 g A$419
  14. Wind Hard Tiny Pro Warm to −2°C 550 g A$409
  15. Aegismax G2 Warm to −2°C 664 g A$569
  16. Black Ice E700 Warm to 7°C 700 g A$519
  17. Black Ice G700 Warm to 3°C 700 g A$489
  18. Black Ice Z700 Warm to −2°C 700 g A$609
  19. Aegismax Ultra Future II Warm to −10°C 830 g A$549
  20. Aegismax G3 Warm to −8°C 952 g A$719
  21. Black Ice E1000 Warm to −2°C 1,000 g A$569
  22. Black Ice G1000 Warm to −7°C 1,000 g A$599
  23. Black Ice Z1000 Warm to −11°C 1,000 g A$769
  24. Aegismax G4 Warm to −12°C 1,236 g A$859
  25. Aegismax G5 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?

SizeDownTotal weightPackedPrice
Regular270 g479 g23 × 12 cmA$289
Lengthen320 g567 g25 × 15 cmA$299

Aegismax's figures.

Where it sits among our 25 bags and quilts, by grams of down

Choose by your coldest night

Highlighted: AIR-E (270 g). The other marks are the rest of our 25 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.

479 gAll up (Regular)
270 g800FP down
11°CComfort (maker)
Down800 fill-power “Ultra Dry” water-repellent white duck down
Regular 270 g, Lengthen 320 g
WeightRegular: 440 g bag, 479 g total weight
Lengthen: 526 g bag, 567 g total weight (Aegismax's figures)
Temperature (maker, EN method)Comfort 11°C
Limit 6°C
PackedRegular 23 × 12 cm
Lengthen 25 × 15 cm
Shell and liningiFlex 10D DWR ripstop nylon shell, 10D soft-touch ripstop lining
ZipYKK #3 two-way side zip with an anti-snag track; opens fully flat
Pairs upZips to a second AIR-E to make a double (maker's note)
In the boxBag, compression sack and mesh storage 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 Yugu R3.6 Self-Inflating Sleeping Mat — R-Value 3.6, 3.5 cm Foam, from 610 g
    Yugu R3.6 Self-Inflating Sleeping Mat

    Open the valve and the foam does most of the work: R3.6 (Naturehike's figure), 3.5 cm thick, from 610 g.

  • 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

Can two be zipped together?
Yes. Aegismax says two AIR-E bags of the same model zip together to make a double.
Is it goose or duck down?
Duck. Aegismax lists the fill as 800 fill-power white duck down with its water-repellent “Ultra Dry” treatment.
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; Black Ice and Naturehike don't say how they rate. 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 Black Ice and Naturehike don't say. 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.