Mountain Equipment

Mountain Equipment Iceline Sleeping Bag Regular

Mountain Equipment Iceline Sleeping Bag Regular

£657.00 £730.00
10% off

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Mountain Equipment's Iceline is the pinnacle of extreme mountaineering sleeping bags. It sets the benchmark for pack size, warmth, water resistance and just overall attention to detail. 


Season : 2020S R

Code : 003497-01294

Weight : 0KG

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Mountain Equipment's Iceline is the pinnacle of mountaineering performance within a sleeping bag; it sets the benchmark for pack size, warmth, water resistance and overall attention to detail.

The outer fabric is made from a super lightweight, durable 10D nylon with a Gore Thermium membrane underneath. This exceptionally thin and lightweight membrane is placed between the outer fabric and the insulation to ensure any moisture that makes it's way onto the sleeping bag is repelled rather than soaked up by the down. A wet sleeping bag is not a happy sleeping bag. This membrane is also highly breathable and will add a further degree or so of warmth. 

Providing the warmth in the Iceline is a whopping 994g of hand stuffed, super high quality Russian Goose Down which guarantees warmth down to -30°C. It isn't simply the sheer quantity of down which makes the Iceline this warm, it's the geekiness that goes into it, the years of knowledge and the technical ability to know which is the warmest way to stuff the down. Vertically alligned V-baffles on the chest and foot piece provide the greatest warmth for areas which lose the most heat, while Trapezoid baffles throughout the rest of the bag optimse pack size. A 6 baffle footbox and 7 baffle hood optimise warmth even further and provide a cucoon of salvation. This also limits the amount of down migration, maximising longevity. 

An expedition fit is longer, wider and more spacious to offer greater comfort but also to allow additional clothing and larger boots to be worn while in the Iceline. This extra space can also store additional clothing to avoid soggy clothes in the morning. Inside the Iceline you're also given a small zipped pocket to stash a phone or other electricals. 

  • Gore Thermium 10D outer shell
  • Water and wind resistant
  • 994g of Russian Goose Down
  • Expedition fit is roomier
  • Anatomically shaped footbox
  • 7 baffle hood
  • 6 baffle footbox
  • V shaped and trapezoid baffles optimise warmth and pack size 
  • Supplied with waterproof stuffsack
  • Inner pocket for electricals
Care & Advice

How warm a sleeping bag do you really need? We’ve tried to help you by grouping our sleeping bags by their recognised comfort ratings. These are the ratings supplied by the brands that indicate the temperature at which you will remain comfortable whilst sleeping on a good insulated sleep mat. After all, comfortable is what you want to be when it’s cold and wet outside and you’re all tucked up in your nice warm sleeping bag.

We always recommend that you choose your bag according to the coldest conditions you will experience; you can always unzip a bag if it is too warm, but trying to sleep when you’re too cold is just miserable. Bear in mind that that we are all individuals and we all feel the cold differently, and that our own resistance will fluctuate depending a whole load of factors including how much we have eaten, whether we have consumed alcohol, whether we need a wee or what kind of mood we are in!

Sleeping bags do not generate heat they only trap the heat we produce so it is vital that you get into your bag when you are giving off warmth, don’t go to bed when you are cold, have a hot meal or a hot drink or do some brisk exercise to get you nicely warmed up.

Traditionally sleeping bag manufacturers provided their own temperature ratings based on their experience, the products intended end use and the perceived environment. But each brand tested their bags in different ways and it was hard to find a fair comparison between models. So, in 2005 a European standard for sleeping bag temperature ratings, EN 13537, was introduced to give consumers a comparable guide to sleeping bag performance across a range of brands and models. The ratings have four different temperature ratings to give you an indication of the bags performance.

Upper limit: This is the highest temperature at which an average male should experience a comfortable night’s sleep.

Comfort: This is the temperature at which an average female should experience a comfortable night’s sleep. On average women sleep colder than men so this rating is some degrees above the ‘comfort lower limit’ for a man.

Comfort lower limit:  This is the lowest temperature at which an average male should experience a comfortable night’s sleep whilst lying in a curled-up body position. This used to be known as the comfort rating.

Extreme: This is a survival rating where the user is likely to suffer health damage such as Hypothermia. It should be treated with the utmost caution and not be relied on for general use.

However, the EN 13537 European Standard does not apply to down filled sleeping bags with a fill weight of more than 800g; for those bags you will have to rely on the manufacturer's experience and technical expertise, which is often more accurate!

Most reputable brands still use their own rating system alongside EN 13537, for instance the M.E “Good Night’s Sleep” and Rab’s “Sleep Limit”. These ratings are often the most accurate guide to the overall performance of a bag being used by an average outdoor enthusiast. They are based on years of expedition heritage, field trials, technological experience, and constant feedback.

But please bear in mind that all ratings are only a guide and, as mentioned earlier, there are a huge range of factors that can affect your comfort, if you are just not sure it is always wise to go for a warmer model.

The biggest difference you can make to your overall comfort is to use an efficiently insulated sleeping mat. Once you get inside your sleeping bag you instantly compress all the filling beneath you, greatly reducing its efficiency. The use of a quality sleep mat will ensure you are properly insulated from the cold ground and you will of course be a lot more comfortable. Your sleeping bag is only as good as the mat that’s beneath it; we recommend EXPED, ThermaRest or Multimat sleeping mats for comfort and insulation.

Technical Information

Total weight: 1650g

Fill weight: 994g

Good Night's Sleep Rating: -30°C

Sizing Information

Pack size: 31cm x 27cm x 24cm

Max User Height: 185cm

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Mountain Equipment Iceline Sleeping Bag Regular

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Excellent customer service. Really detailed easy to understand product descriptions on the Trekitt website, and gear reviews on the Trekitt YouTube channel made it so easy to choose the right backpack for me.

Emily - May 2020

Amazing service! Very helpful in regards sizing and what most matched my needs, despite this being done over the internet. YouTube videos of products being examined are very useful also. Would definitely use again, very fast and efficient delivery. Brilliant! Highly recommended!

David R - April 2020

Highly recommend. I usually go to the shop in Hereford as staff are alwasy very helpful and knowledgeable. So this was the first time I have purchased online and the service was just as good as the shop.

Grizzy - April 2020

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