-5°C

Montane Direct Ascent Sleeping Bag

-5°C Comfort Limit (EN13537:2012), 475g of 800+ Fill Power Down (US Method)
Weighs 1090g (excluding pouch)
Code: SS14637
  • Now £259.99
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  • RRP £319.99
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Montane's Direct Ascent sleeping bag is not the lightest but has a highly technical construction and is laced with useful features that work.

Montane Says:

Weight is everything for a summer alpinist and the pursuit demands a bag that is as light as possible without compromising the critical features required for long ascents at the limit of endurance. The Direct Ascent sleeping bag is equipped with a technical mountain hood, designed to allow a snug fit that moves with the head both when lying down and sitting upright. Its ergonomic body shape reduces cold spots and helps deliver more a comfortable sleep, while the technically engineered foot box has the space to allow both a relaxed foot position and extra layers of tent footwear. The super light PERTEX® Quantum outer shell provides windproof and breathable protection for the down, while its renowned durable water repellency helps shed any tent condensation.

Comfort 1C / Comfort Limit -5C / Extreme-22C

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Montane's Direct Ascent Sleeping Bag is first and foremost well constructed, Montane have applied an incredible attention to detail in order to construct their bags to be the best they can be - a glance down the features list highlights some of the construction decisions taken in order to reduce cold spots or stop down migrating.

Focussing on the things you can see reveals some really neat touches, the antisnag zip baffle finally looks like it works - Montane have stitched two small piped baffles the full length of the zip, these really do the trick and its difficult to see how the zip could possibly snag.

The footbox is interesting - its shaped to accommodate feet that are pointing into the air - assuming you are sleeping on your back - if this is you then it just might be the innovation you've been looking for - if you sleep on your side the bag will twist slightly to accommodate your feet - we're luke-warm on this as a feature.

We really like the inner fabric though - the 'PEAQ Down' lining is still and out and out nylon fabric but it feels less clingy than the Pertex Quantum that you will find lining the lightest bags. The hood is well designed to give good coverage, more like a garment hood.

On the base of the bag Montane have added silicon dots to help keep the bag in place on your mat - these do make a difference, and inside the bag you have the mp3 pocket and a second pocket for a waterbottle - both useful features.

Can't resist mentioning that the hood has a foam peak - Montane says this 'seems' to create a micro climate around the face when the bag is cinched up - ha ha ha!

So, if you are not buying the lightest sleeping bag in its class you are buying a very able bag which won't annoy you with jammed zippers, will feel more comfortable than some lighter bags and has a really good fit, from hood to collar to footbox.

- Reviewed by Ultralight Outdoor Gear

Read reviews here:      
Help and advice:Choosing a sleeping bag adviceEN 13537 rating for sleeping bags explainedAll about down filling in sleeping bags
Sleeping bag shape and sizes adviceSleeping Bag features Page 1Sleepin bag features page 2
  • Activities: Alpinism / Fast Alpine / Backpacking / Basecamp
  • Shell fabric is PERTEX Quantum that is exceptionally lightweight, breathable and features a durable water repellency
  • PEAQ Down liner that is comfortable next to the skin, highly breathable and fast drying
  • Exceptionally high quality goose down with 800+ fill power
  • ¾ length YKK VISLON zip that is angled away from the shoulder to prevent body contact whilst user is sleeping on side and to allow easier access from inside
  • Fine microfleece facings and roll over Velcro closure flap at top of YKK zip for extra comfort
  • Two way YKK VISLON zip for lower access or ventilation whilst zip is drawn up
  • Sleeping bag zip opens fully at bottom to completely open sleeping bag to aid airing and drying
  • Locking zip heads to avoid unexpected zip opening
  • Glow in the dark zip pulls for easier night time location without head torch
  • Two double 3-D volume baffles behind YKK zip that extend past zip end for draught proofing
  • Outer and inner anatomically designed shape tapers around lower legs and curves around shoulders to reduce cold spots
  • Bag has 3-D construction with side walls to allow comfortable sleeping on side
  • Trapezoidal vertical baffles across chest and around sleeping bag prevent cold spots and down migration to extremities of body
  • Horizontal baffles around lower legs and feet help hold the down in correct location
  • Flipper foot box allows for natural foot position whilst lying on back and more room for thick socks, tent slippers or inner boots
  • Flipper foot box shape begins in lower leg area and tapers from knees to ankles reducing the amount of cold spots
  • 3-D shaped neck baffle features Velcro closure at either end and is ergonomically shaped to encase the whole circumference of the neck
  • Split drawcord arrangement in baffle enables further adjustment and pulls insulation closer to front or rear of neck
  • Baffle can be split by Velcro and can fold down whilst in upright sitting position
  • 3-D shaped hood design based on years of MONTANE clothing construction experience, in particular the award-winning technical mountaineering jacket hood design
  • Hood shaping to prevent down migration and to limit cold spots
  • Peak visor on hood for improved weather resistance and prevention of weather entry into bag whilst bivvying. Peak helps stop condensation entering bag from inner tent or on contact with bivvy bag. Also helps shield light whilst sleeping in high Arctic / Antarctic summer conditions
  • Rear crown elastication reduces volume around hood which increases thermal efficiency, decreasing the need to wear a hat; ideal for use whilst in sitting position. Elastication also helps hood to move with the head whilst sleeping
  • Split, colour coded face drawcords to control and adjust volume individually around upper and lower face. Drawcords easily accessed from inside the sleeping bag
  • Soft brushed microfleece inner next to chin and mouth area
  • Lower face baffle and upper hood baffle arrangement is 3-D construction to ensure down volume around lower face drawcord area can loft easily
  • Underside of sleeping bag features non-slip silicone MONTANE roundels to help grip sleeping mat or bivvy bag
  • Foot box hang loops for storage and drying
  • Internal stretch mesh water bottle pocket on right hand side
  •  Internal pocket on left hand side with concealed YKK zip for storage of MP3, mobile phone, GPS etc.
  • Includes MONTANE cotton storage bag and dry bag
  • Dry bag doubles as a pillow whilst stuffed with clothing and features a non-slip silicone roundel for extra grip. Features a pull handle at base
  • Dry bag shape differs from traditional tub stuff sacs; constructed with a packable shape and to fit more easily in pack base compartments
  • EN13537:2012 Comfort: +1°C
  • EN13537:2012 Comfort Limit: -5°C
  • EN13537:2012 Extreme: -22°C
  • Fabric: PERTEX Quantum
  • Fabric denier: 20D x 20D Rip-stop
  • Lining: PEAQ Down
  • Zip: ¾ length YKK VISLON
  • Filling: 475g / 16.7oz of minimum 90/10 goose down at 800+ fill (USA) CERTIFIED NON LIVE PLUCKED & NON FORCE FED DOWN
  • Goose down fill weight: 475g / 16.7oz
  • Weight: 1090g
  • Internal length: 1,940mm / 76.3in
  • Construction: Trapezoidal boxwall with MONTANE side baffles
  • Packed size: 26 x 9 x 34cm but could be reduced using a compression sack


EN13537:2012 - Look for the 2012 label for the most accurate rating; In 2012 the EN system of testing sleeping bags was re-vamped - the new testing procedures are more rigorous, producing more consistent results than previous tests. 2012 results tend to rate sleeping bags as poorer performing by a few degrees when compared to previous test results, even though the sleeping bag may be identical, or even better.

This means that comparison between an EN13537:2012 rated bag and an EN13537:2002 rated bag are particularly difficult - our advice is to use the new EN13537:2012 rating to compare with other bags who have also been rated in this way.

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