Autumn M.Degree 250 Down Sleeping Bag

Superlight 0°C bag. 'Autumnised' in our lightest water-resistant fabric & high lofting down with hybrid construction for minimum pack weight & maximum warmth. £219 less than our Hypershelled M.Degree 250 'K' down sleeping bag.
Typical Operating Temperature
Guideline minimum temperature. Sleeping Bag TOT: you should get a night’s sleep, under normal circumstances. Clothing TOT: you should feel warm enough, assuming low/moderate activity. Sleep System TOT: relates to full system. For more details, see our Technical Briefing.
0°C / 32°F
Weight
For clothing, weight is for size: M. For sleeping bags, weight changes with selected length/width. N.B. there may be some variation in the weights of finished products.
420g / 15oz
Price
£423.00
Autumn M.Degree 250 Down Sleeping Bag

"Extraordinarily light for the warmth, and very comfy. I took it to the Colorado Rockies ... and it was excellent"

Chris Townsend

Size
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Features

  • Only available August and September
  • £219 less than our Hypershelled M.Degree 250 'K' down sleeping bag
  • Water-resistant Hypershell outer fabric
  • Rare 950 fillpower European Goose Down
  • Sheer-light 7X fabric inner
  • Box-wall construction on the top for maximum loft
  • Stitch through construction on the base for minimum weight
  • Pack size†: 13 x 21cm
  • Oval footpiece: fits naturally to feet and avoids pressure
  • Adjustable hood draws up close around head
  • Stuff sac & mesh storage bag supplied
  • Options:
    • 4 different widths for the perfect fit: Slim, Std, Wide and Extra Wide*
    • 4 different lengths for the perfect fit: Short, Std, Long, and Extra Long*
    • Zip options:
      • No zip
      • Full zip (left or right)
      • Short zip (left or right)
      • Foot zip (left or right)

Please note: we make our stuff sacs big enough to allow fairly easy stuffing rather than reducing the bag to the tightest minimum.

*Please note: For all length and width options we change the amount of downfill to keep the warmth (TOT) the same.

Description:

This limited edition M.Degree 250 Down Sleeping Bag is £219 less than our standard M.Degree 250 'K' in water-resistant Hypershell. Part of our Autumn Fast & Light Collection.


With Autumn’s lower temperatures comes more condensation, increasing the likelihood of damp gear inside and outside your tent. Like the rest of our Autumn Fast & Light Collection, this bag is ‘Autumnised’, built to repel damp and drizzle. At the same time it’s incredibly light, helping you travel fast.

It’s designed with an eye towards mountain marathon racers, lightweight backpackers, bike-packers, multistage ultra runners, lightweight campers and wilderness trampers – but well suited to anybody who wishes to move fast and light.

The top of the bag uses box-wall construction to allow optimum down lofting, and stitch-through construction on the base sheds excess bulk, working with your ground insulation mat to deliver the ultimate weight saving performance

This bag has been designed with Autumn races, such as the Mourne Mountain Marathon and Original Mountain Marathon (OMM), in mind. For the outer we've used our lightest water-resistant fabric, Hypershell, which protects the down from condensation drips in a tent. “7X” (one of our lightest fabrics) and 950 fillpower goose down (our rare, exceptionally high grade insulation) allow us to create a superbly lightweight bag.

As with all PHD sleeping bags, this M.Degree° bag is made to order, so we can offer plenty of options. To begin with, a combination of 4 different lengths and 4 different widths allow you to get the perfect fit. Primarily this is because poor sizing compromises insulation, but it also means that you carry only what’s necessary.

Half- and full-length zip options allow greater flexibility in varying temperatures, while the foot-zip option is the ultra-light way to cool warm feet. Of course, to maintain minimum weight and pack size we’ve selected super-light zips.

Only available August and September. 

Winner of The Great Outdoors (TGO) Gold Award in the Camping Category of TGO's Gear of the Year Awards.

Ultralight 7X fabric (weight: 22 gsm)

7X is our new sheer-light 7 denier fabric. An exquisitely fine rip-stop nylon, 7X is incredibly light, highly wind-resistant and has first-rate down proofing. This fabric helps us create the very lightest of gear in the PHD range. Of course the lighter the fabric the lighter the sleeping bag or down clothing, and the less space it takes up in your rucksack. This fabric is so light it actually helps to allow even greater lofting of the down too.

Water-resistant HyperShell fabric (weight: 28 gsm)

HyperShell is PHD’s exceptionally lightweight waterproof coated fabric. This remarkable ripstop nylon provides complete windblock and good water resistance at a breath-taking weight (28 gsm). HyperShell protects the down from condensation drips found typically in tents, tarps and snow-holes, but its very low weight allows greater lofting of the down and a smaller pack size. Hydrostatic head: 1000mm.

Note: unlike some other so-called 'proofed' fabrics, HyperShell does not rely solely on a DWR (durable water repellent) coating. Although it has a DWR coating, more importantly it has a breathable and permanent PU coating applied on the underside of the fabric that cannot be abraded through daily use, so performance is maintained over many years.

Foot zip

For the lightest and smallest pack a sleeping bag without any zips is king, but for those with warm feet, or even race blisters, a foot zip can be more than just a little luxury. Adding only 10-12g to the total weight of the bag, the foot zip is the ultralight route to comfort.

Sleeping bag zips

  • No zip: The standard design on our lightest bags with open hoods. The simplest/lightest system which is a must for adventure racers. Up to 140gm (5oz) lighter than a full zip with draft tube.
  • Full zips: Full zip bags ventilate well, so they can be used over a wider range of temperatures.
  • Short zips: Short zips are lighter and pack smaller than full zips. A short zip & draft tube is up to 85gm (3oz) lighter than the full version.
  • Our full briefing on sleeping bag zips.

950 fillpower down

A newcomer to our range. European goose of rare quality. A high value alternative at the top levels of performance. More on our down insulation.

Construction

This bag has an insulating straight wall baffle system on top (no straight-through stitching). Straight wall is the lightest of all baffle sytems. In cross section it looks like this:

On the bottom stitch-through seams are used to minimise weight. More on sleeping bag construction.

"Extraordinarily light for the warmth, and very comfy. I took it to the Colorado Rockies ... and it was excellent"

Chris Townsend

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