Something to supplement an Insultex TQ

[jbphilly]

I think for me the main thing might be that my skin isn't touching it.

[CrankyOldGuy]

I take poly-pro long underwear and one of those very light down jackets (5 oz.?). Frequently, I don't put on the jacket but use it as short blanket.

[AaronAlso]

I get clammy sometimes too with IX. I've yet to figure out what conditions lead to it happening sometimes and not others.

I have drawn the conclusion that it has to do with air flow across the IX.

To OP,

100gm Thinsulate is 3oz/yd^2 and IME as warm as 100wt Polar Fleece at 6.5-8.5oz/yd^2. It's about $5/yd @ owfinc.com

[G...Hawk]

I have drawn the conclusion that it has to do with air flow across the IX.

Perhaps it is the airflow.

Have IXUQ and IXTQ.
TQ with 2 layers plus ripstop, only sewn at footbox and head end with 6" of ripstop border near face.
A 3rd layer can be added / removed (unbuttoned ).

Used it for three years. Never really felt the clamminess backpackers spoke about.
Perhaps only a hint, once.
Used WB Edge tarp with no doors.
WBBlackbird.

This winter got WBSuperfly winter tarp with doors.
This winter used it in very cold and windy weather.
I wore layers to sleep in, had no notice of clamminess.

In March on a 5 day hike on the AT (in NJ ) with milder weather,
In the hammock with only the 2 permanent IXlayers+ripstop :
I wore less layers on my torso, shorts, bare legs and long wool socks
WBSuperfly winter tarp with doors.

Clammy each night.
The last night : turned TQ ripstop to the inside ( thru the last half of the night ) and only below the waist;
used down jacket as blanket on upper torso ( the whole night ).

This arrangement much better !

Perhaps : It is the air flow. That was the major difference, with tarpdoors making a warm "room".

Thanks AaronAlso for the observation.

Will be checking that out.
When back on the AT in two weeks with the WB Edge tarp, without doors.

jbphilly,
Also, will try a rectangle of silk as sheet under the IX. ( perhaps 30"x66" )

G



.

[SteveS]

Finished my TQ. I did 2 layers IX, with 2 layers of low-loft poly-fill quilt batting from the local fabric store (the cheap stuff). Full nylon shell, with an open end so I can swap the insulation around if I don't like it. Right now I have poly/IX/poly/IX and plan on sleeping with the poly towards me to get some spacing between me and the IX.

[canoebie]

Keep us posted. Sounds interesting.

[SteveS]

So I got to hang this weekend, and test out my TQ which has layers of cheap quilt poly-fill, and IX.

The temperature was about 45 the first night, and I woke up cold a few times, and 50 the second night, and I was sweating all night. It was not a bad night sleep, but not great either.

I had a layer of nylon, and poly-fill between me and the IX. Since I was sweating all night, I'm not sure if the IX is a good idea. I also suspect overheating, and then overcooling was what made me cold the first night.

I'm thinking I may ditch all the current insulation and go with one of Climashield or Primaloft. I need this for a June through hike, and time is running out to get the gear assembled and tested before then.

[jbphilly]

I have drawn the conclusion that it has to do with air flow across the IX.

To OP,

100gm Thinsulate is 3oz/yd^2 and IME as warm as 100wt Polar Fleece at 6.5-8.5oz/yd^2. It's about $5/yd @ owfinc.com

Hey, this stuff looks interesting. Right now they seem to have "Thin 40" and "Thin 150" - would either of those be similar to what you recommended in terms of amount of insulation provided?