Bluebolt Gear Quilt - with built in Vapour barrier?

Discussion in 'Sleeping Bags & Quilts' started by Mole, Jan 30, 2020.

  1. Mole

    Mole Thru Hiker

    https://blueboltgear.com/

    This chap has interesting design quilts with breathable draft stoppers like the original Ray Jardine quilts.

    But unusually, he's using a silnylon as the liner and as a Vapour barrier.

    He makes temperate claims better than the usual ratings of those weights of Climashield Apex, due to the Vapour barrier.

    [​IMG]

    It's been rigorously tested in the Himalayas (Company is in India). And moneyback guarantee.
    See the website.

    https://blueboltgear.com/products/solo-quilt

    I can see the vbl helping in colder and low humidity conditions, but I'm sceptical that the vbl won't be clammy in certain situations.
    I'd expect to be able to use an Apex 5oz/yd² (167g/m² ) quilt in a range of temperatures, and just vent as necessary in warmer times, not just the lower end of its rating. As I do my 10year old MYOG 5oz/yd² Climashield XP quilt.

    What do others with knowledge/experience of using a vbl think? Gonna work?

    (edit. I mean for typical UK conditions. It obviously works for fit ultratrekkers in the Himalayas near freezing!)
    Last edited: Jan 30, 2020
  2. Teepee

    Teepee Thru Hiker

    Yes, it will work. Quite simply, it stops cooling by evaporation and there is less convection through the weave.

    Yes, it will be clammy in certain situations; usually worst in the morning when sleeping stuff is dampest after a whole night in it. The key to getting a VBL to perform is not sweating into it and making sure the layers inside don't get too damp. VBL need running on the cool side; if your a sweater, they will be worse and less comfy.

    I'd use one in very cold conditions and that's not usually typical UK use. I've spent many nights and days in VBL stuff, none of them have been hideous except when sweating. I did 3 winter days sleeping in a down jacket inside a Blizzard survival bag in the lakes a few years ago, the down jacket got a little damp but was fine and still usable.
    Michael_x and Mole like this.
  3. Mole

    Mole Thru Hiker

    So what sort of upper temperature would you use it at?
    I use my myog quilt from 20C down to light frost. Bivvy or shelter.
  4. Teepee

    Teepee Thru Hiker

    They seem to make a variety of quilts with a choice of inners. I suppose the 40f is the best match for average UK use.

    Personally, I use a 40f for temps between 60f and about 20f. The VB one would be likely getting a bit clammy as it nears 60f and I'd be clothed at 20f.
    Cranston and Mole like this.

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