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Thread: The Jerven Bag

  1. #1
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    Default The Jerven Bag

    I have seen these mentioned in a recent post, and looked on there website.

    I am a little confused. Are these a sleeping bag? Shelter? allof the above?

    I presume you would need a Jerven Bag Thermo as i think the Jerven Bag origional is just a shell?

    Anyone use one? what are they like in use?
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  2. #2
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    Yep thats about right ,,, all of the above .

    odd bit of kit really ,
    But thay work very well giving you a dry warm place to sit , sleep depending on model .
    love mine best buy for Scandinavia ,

    Twodogs
    Twodogs Wool bush shirt ,,,,you know you want one ......

  3. #3
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    As Twodogs said, all you said is true.

    I have the latest model (Exclusive, with a 200gr. liner - bulky!!!).

    Didn't had the time to take it out for a long period of time, but did spent 3/4 nights in one. If you sleep in one, you might find condensation between the shell and liner. Just zip them open and let them air to sort that.

    The shell can be used as a bivy bag. Add a liner and it becomes a weatherproof sleepsystem. The liner can be used in itself as a sleepingbag (roomy) and the shell can be put up as a tarp.

    If you want I'll make some new pics and put them up later today
    Johan

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  4. #4
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    They are unbelievably good. I took my wife out meteor spotting in the snow in the Derbyshire hills last December and she was quite comfortable in the Jerven bag while I made the coffee. Then I got in it as well. It was about minus 5 with a fifteen to twenty knot wind. I woke up in a field near Toulouse in January after a very cosy night to find the bag covered in ice. I have some photos somewhere of the rectangular patch of frost-free ground after I picked up the bag. I've used it to sit in (they have a couple of short zips at the 'sides' for your arms when you're sitting in them) and the difference in comfort is nothing short of astonishing. I like to put a hot water bottle or two in there, and I'm not kidding you could be quite comfortable in the arctic like that.

    I like the fact that you can just drop the thing on the ground and it's ready to get in. It takes zero time. After I plopped it on the ground in Toulouse I went back to the van to get my sleep mat, about twenty yards away. When I turned round I couldn't see the bag even though I knew exactly where it was! I like that too.

    Oh, and I've used it as a reflector, hanging it behind me with a fire in front of me. With some faffing about with bits of string it can be made into a sort of dish-shape around you, very cosy.
    Last edited by ged; 20-07-2011 at 12:07. Reason: On reflection

  5. #5
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    I've been looking at the Jerven Bags for a couple of years. I've only heard good things about them, the only thing preventing me owning one is the price.

    Ahjno - do you have any idea how the new Exclusive version compares to the Thermo Hunter? They're the same price, but the Exclusive is half the weight. Does that mean that it's without a thermal layer and that you have to buy the liner separately? Surely that just makes it even more expensive.

    Cheers,
    Claudiasboris

  6. #6
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    That would be great!

    I really like the idea of these, I did not realise it could be used as a tarp also with the liner as a bag


    Quote Originally Posted by Ahjno View Post
    As Twodogs said, all you said is true.

    I have the latest model (Exclusive, with a 200gr. liner - bulky!!!).

    Didn't had the time to take it out for a long period of time, but did spent 3/4 nights in one. If you sleep in one, you might find condensation between the shell and liner. Just zip them open and let them air to sort that.

    The shell can be used as a bivy bag. Add a liner and it becomes a weatherproof sleepsystem. The liner can be used in itself as a sleepingbag (roomy) and the shell can be put up as a tarp.

    If you want I'll make some new pics and put them up later today
    It is the wise man who has something to say,
    It is the fool who has to say something!

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  7. #7
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    Quote Originally Posted by Ahjno View Post
    If you want I'll make some new pics and put them up later today
    look forward to that, thanks
    "All that is necessary for the triumph of evil is that good men do nothing."
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  8. #8
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    Love my Hunter
    "No good decision was ever made in a swivel chair" - George S. Patton, Jr

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    Is there anywhere in the UK selling this i'll like to take alook at one before parting with the cash?

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    Quote Originally Posted by Corso View Post
    Is there anywhere in the UK selling this i'll like to take alook at one before parting with the cash?
    I dont think so.

    Here's their site though:

    https://jerven-com.secure.flexiweb.no/
    "No good decision was ever made in a swivel chair" - George S. Patton, Jr

  11. #11
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    Mine came directly from Norway, though overhere there's 1 shop that sell them.

    I'll get the camera - thunder and a lot of rain outside, so I stick indoors
    Johan

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  12. #12
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    First pic: the Jerven bag is designed to be carried on the outside of your bergen as some sort of bedroll.

    I used a BCUK Spyderco for scale:


    Top cover:


    The Jerven bag comes in a pillowcase for transport, though I've seen soldiers using it without - as it's quite a puzzle to get it back in:


    The pillowcase is made of the same material as the shell. Note the aluminium coating, that reflects your body heat.


    Left the pillowcase and the top cover, right the Jerven bag - full width, length folded in 3. Please note I didn't zipped the bag completely open (as a tarp), as there isn't enough room indoors Hence only showed in bag mode.


    A corner. The hole is big enough to let a pencil through.


    Waterproof zips all around the outside.


    The liner zipped to the shell. I put a red polo shirt in the arm opening for contrast.


    View at the arm opening and a look between the shell and liner.


    Liner partly zipped away from the shell, continue this and you get a separate liner and shell.



    The complete package:
    - Jerven bag (shell)
    - Liner (either 80gr./m2 or 200gr./m2)
    - 1 pair of arms
    - bright orange safety flag
    - webbing belt (to keep the bag up in case you use it as a 'poncho', or wear the pouch).
    - pouch (for Jerven bag / shell only - though there's enough room for some small other items, like some plasters, lighter / esbit, emergency candy).

    HTH
    Johan

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  13. #13
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    Are these the same length as a sleeping bag?
    It is the wise man who has something to say,
    It is the fool who has to say something!

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  14. #14
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    Quote Originally Posted by Pignut View Post
    Are these the same length as a sleeping bag?
    Depends on how long your sleeping bag is They are 220cm x 102cm (as a bag), or 220cm x 204cm (as a tarp). I'm 193cm and had room to spare and was fully enclosed.
    Johan

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  15. #15
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    Quote Originally Posted by Claudiasboris View Post
    I've been looking at the Jerven Bags for a couple of years. I've only heard good things about them, the only thing preventing me owning one is the price.

    Ahjno - do you have any idea how the new Exclusive version compares to the Thermo Hunter? They're the same price, but the Exclusive is half the weight. Does that mean that it's without a thermal layer and that you have to buy the liner separately? Surely that just makes it even more expensive.

    Cheers,
    Claudiasboris
    On the Hunter the liner can't be removed. On the Exclusive it can, making it more versatile. Also the liner on the Hunter is 80gr./m2 while you can choose which liner you want on the Exclusive when you buy (80 or 200).


    EDIT: re-read post and noticed I didn't fully answered your question:
    The Exclusive comes without liner (shell only) - and you have to buy that one (liner) separately. Expensive indeed, unless you get it as a present.
    Last edited by Ahjno; 20-07-2011 at 17:27. Reason: re-read question
    Johan

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  16. #16
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    I'm sorely tempted. It looks a really good and useful piece of kit. The Exclusive with the 80 gsm liner seems to be the ideal for me. Many thanks for the photos - and the infectious enthusiasm. My bank manager is going to hate me...

  17. #17
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    Thanks for the pics Johan. I have often seen these in stores in Norway, but usually rolled up.
    What model is yours?
    Really like the idea of one, but price would make me nervous to use it near a camp fire.
    "When it rains, we get a little wet, and when the sun shines, we get a little hot"

  18. #18
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    Mines the thermo XL big and wide with the liner non-removable ,


    A lot of Scandinavia hunters use them ,
    http://www.youtube.com/watch?v=34jTeP1j_M8
    Last edited by Twodogs; 20-07-2011 at 17:41.
    Twodogs Wool bush shirt ,,,,you know you want one ......

  19. #19
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    Twodogs.

    Can yours be used as a sleeping bag? this is the model i would probably go for.

    Quote Originally Posted by Twodogs View Post
    Mines the thermo XL big and wide with the liner non-removable ,


    A lot of Scandinavia hunters use them ,
    http://www.youtube.com/watch?v=34jTeP1j_M8
    It is the wise man who has something to say,
    It is the fool who has to say something!

    www.freewebs.com/pignut

  20. #20
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    Thanks for the pics and the reviews everyone!

    Claudiasboris

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    Pignut I dont but I dont like sleeping cold and tend to use a nanok 0 or a US poncho liner just to bump it up a bit ,
    This model was pre the extreme but it works for me .
    Twodogs Wool bush shirt ,,,,you know you want one ......

  22. #22
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    What I would like to know/find out is,, If you wear/sleep in it in a hammock do you need a mat/under quilt or dose the silver bit stop you getting cold?

    All told it dose look a good system and well made as far as I can tell.
    "All that is necessary for the triumph of evil is that good men do nothing."
    Politicians urinate on us and the media tell us it's raining.

  23. #23
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    These look good but the sceptic in me asks this question..... Is this just an insulated plastic bag?

    Are they worth the cash?
    It is the wise man who has something to say,
    It is the fool who has to say something!

    www.freewebs.com/pignut

  24. #24

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    er sorry to change the subject what kettle / pot is that please?

    Quote Originally Posted by Twodogs View Post
    Mines the thermo XL big and wide with the liner non-removable ,


    A lot of Scandinavia hunters use them ,
    http://www.youtube.com/watch?v=34jTeP1j_M8
    Lifes a lesson you learn it when your through
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  25. #25
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    Tempted as I am but I'm resisting buying one because I don't know if I'll ever use it and I can't really work out what it's for.

    Do you lads use it to replace a sleeping bag/waterproof bivvy combo, or maybe use it to add a few degrees to an existing doss bag? Johan mentions condensation so I take it they're not breathable, how does that work with a sleeping bag, do you wake up damp if used as a blanket/bivvy?

    They look like they're designed for sitting around in exposed places when hunting, I can see how they'd come in handy as an emergency shelter, as a kind of glorified bothy bag.

    I think I "need" one but can't quite get my head round it
    Rich

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  26. #26
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    Spiritwalker its an eagle products kettle from Norway ,

    Gents I hear what you saying I suppose you just need to use one to see how well thay work
    Twodogs Wool bush shirt ,,,,you know you want one ......

  27. #27
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    Arrrrrrrrr kit!
    It is the wise man who has something to say,
    It is the fool who has to say something!

    www.freewebs.com/pignut

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    Quote Originally Posted by Pignut View Post
    Arrrrrrrrr kit!
    Kit Covetting... Be warned , It's a dangerous path!

  29. #29
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    I know I know, may the God of bushcraft please save me!
    It is the wise man who has something to say,
    It is the fool who has to say something!

    www.freewebs.com/pignut

  30. #30
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    Quote Originally Posted by Pignut View Post
    I know I know, may the God of bushcraft please save me!
    Plus don't forget where you put it down either:

    From their website



    "No good decision was ever made in a swivel chair" - George S. Patton, Jr

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