The Mythic is one of the lightest and most packable sleeping bags available at this point in time. The combination of the ultra high quality 900 fill power down and lightweight 7 denier outer provide a sleeping bag which will pack down to almost nothing while being able to accompany you down to -5°C.
The most important aspect of the Mythic is the exceptionally high quality insulation. The 900 fill-power down is a jump up from Rab's previously used insulation and even that of other brands. The quality of this insulation means the Mythic will pack up far smaller than most sleeping bags, is far lighter and requires less insulation to equal the same warmth as cheaper alternatives. This is then treated with a nikwax coating to allow the down to soak up less water and stay warmer if the bag does happen to get wet (although we would strongly recommend always keeping a down bag dry). As if the quality wasn't enough to persuade you, the down is all R.D.S certified, meaning it comes from birds which have not been live plucked and have lived a free-range existence. Not only is the down ethicly sourced and of the highest quality, but Rab also incorporate clever baffle techniques to optimse warmth and pack size. Trapezoid baffles feature throughout the bag as they leave less cold spots and will pack smaller than standard rectangular baffles.
Further optimising the Mythic's high warmth-to-weight ratio is the super light outer fabric. Pertex Quantum 7 denier is used throughout the entire bag, providing a highly stitched surface which stops down escaping but still optimises pack size and breathability. It's perfect for mountain activities due to it's high durability but low weight and small pack size.
An angled footbox allows you to sleep on your back with your feet pointed upwards without discomfort, while a glow in the dark zip puller makes it easier for those early morning excursions or late night trips out. A cotton storage sack is included to safely store the bag when not in use, and a drybag compression stuff sack is provided to pack the Mythic down as small as possible when out in the mountains.
The Mythic is just a brilliant mountain orientated sleeping bag. It's exceptionally lightweight, packable, warm and features some of the best sleeping bag knowledge in the world. After all, Rab's first product was a sleeping bag.
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Pertex Quantum 7 denier fabrics
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900 FP hydrophobic goose down insulation
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Weight saving baffle construction
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Trapezoid baffle construction
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Mummy shape
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Cotton loft sack included
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YKK main zip
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Anti-snag zips
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Hood drawcord
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Angled footbox
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Left zip only
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 an insulated sleep mat. After all, comfort is what you want 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 we are all individuals, so we all feel the cold differently and that our own resistance will fluctuate depending on 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 product's intended end-use and the perceived environment. However, 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 bag's performance.
Comfort Rating: 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 Limit Rating: This is the lowest temperature at which an average male should experience a comfortable night’s sleep whilst laid down in a curled up position.
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, Mountain Equipment's “Good Night’s Sleep” and Rab’s “Sleep Limit”. These ratings are often the most accurate guide to the overall performance of a sleeping bag being used by an average outdoor enthusiast because 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. Therefore using a quality sleep mat will ensure you are properly insulated from the cold ground, and you will be a lot more comfortable... Basically, there is no point in buying a top-quality sleeping bag if you are just going to lie down on the floor.